September 19, 2017

Family Statistics

Gilbert Belnap Descendants (by Generation)

The first three generations from Gilbert Belnap are now CLOSED (meaning no new additions/births are possible) and also TERMINATED (meaning all members of that generation have passed away).  The fourth generation from Gilbert, i.e., his great grandchildren’s generation, is now CLOSED (it is no longer possible for more great grandchildren to be born) but is still NOT TERMINATED (members of this generation are still living–although rapidly fewer and fewer).  Based on available family records, it appears that members of the fifth and sixth generations from Gilbert are reaching middle age and have ceased, or will soon cease, having additional children, which will impact the final size of the succeeding generations.  The fifth generation is now believed to be CLOSED (no new additions are possible) although the sixth generation is still OPEN (members can be and/or are still being added even though some members. i.e., infants, have passed away).  Note that the “birth ranges” and “death ranges” of each succeeding generation continue to widen as older and later born children have children over an increasing range of years–naturally, later born children will likely have children born in later years than their older siblings.  At some point, it will be possible for an entire generation level in one branch of the family to come and go before the same generation level in another branch of the family starts to arrive.  Interesting!

  • Generation 1:  Gilbert Belnap (plus wives Adaline Knight and Henrietta McBride)–Generation CLOSED and TERMINATED
    • Born:  1 plus 2 Spouses
    • Living:  0
    • Birth Range:  1821-1831 = 10 years
    • Death Range:  1899-1919 = 20 years
    • Married with Children:  All (100%)
  • Generation 2:  Children–Generation CLOSED and TERMINATED
    • Born:  17 plus 20 Spouses
    • Living:  0
    • Birth Range:  1847-1874 =  27 years
      • First birth in Generation 2:  1847–Gilbert Rosel Belnap
      • Last birth in Generation 2:  1874–Lola Almira Belnap
    • Death Range:  1850-1950 = 100 years
      • First death in Generation 2:  1850–John McBride Belnap
      • Last death in Generation 2:  1950–Mary Louisa Belnap
    • Married with Children:  15 out of 17 (88.2%)
    • Average Family Size:  10.7 children per married descendant
    • Surnamed Belnap:  17 (100%)
    • Male:  70.6% (12); Female:  29.4% (5)
  • Generation 3:  Grandchildren–Generation CLOSED and TERMINATED
    • Born:  160
    • Living:  0
    • Birth Range:  1870-1920 = 50 years
      • First birth in Generation 3:  Jan 1870–Sarah Elizabeth Belnap
      • Last birth in Generation 3:  1920–Vyrl Coolbear
    • Death Range:  1870-2011 = 141 years
      • First death in Generation 3:  1870–Gilbert Levi Hammon
      • Last death in Generation 3:  2011–Vyrl Coolbear
    • Married At Least Once:  123 (76.875%)
    • Married More Than Once:  ___
    • Married with At Least One Child:  122 (76.25%)
    • Married with No Children:  4 (2.5%)
    • Never Married–But Lived to Possible Marriage Age:  7 (4.375%)
    • Never Married–Died Young:  27 (16.875%)
    • Surnamed Belnap:  106 (66.25%)
    • Male:  46.25% (74); Female:  53.75% (86)
  • Generation 4:  Great Grandchildren–Generation CLOSED but NOT TERMINATED
    • Born:  590 known/reported
    • Living:  [460 known deceased; 130 presumed living or death date currently unknown] (less than 22.04%)
    • Birth Range:  1889-1960  = 71 years
      • First birth in Generation 4:  1889–Clarissa Jane Stoker
      • Last birth in Generation 4:  1960–David William Coolbear
    • Death Range:  1890-Still Living = [127+] years
      • First death in Generation 4:  1890–Clarissa Jane Stoker
      • Last death in Generation 4:  [Still Living]
    • Married with Children:  ____
    • Surnamed Belnap:  195 (33.05%)
    • Male:  51.19% (302); Female:  48.81% (288)
  • Generation 5:  Great Great Grandchildren–Generation CLOSED but NOT TERMINATED
    • Born:  1,806 known/reported
    • Living:  estimated 60%  [262 known deceased]
    • Birth Range:  1910-1987 = 77 years
      • First birth in Generation 5:  1910–Norma Pauline James
      • Last birth in Generation 5:  1987–Eric Scott Belnap
    • Death Range:  1918-Still Living = [99+] years
      • First death in Generation 5:  1918–(baby boy) Sperry
    • Surnamed Belnap:  327 (18.1%)
    • Male:  53.1% (961); Female:  46.9% (845)
  • Generation 6:  3rd Great Grandchildren–Generation OPEN
    • Born:  4,365 known/reported
    • Living: estimated 75%+  [153 known deceased]
    • Birth Range:  1932-present
      • First birth in Generation 6:  1932–James Cloyd Bartonek
    • Surnamed Belnap:  497 (11.39%)
    • Male:  51.43% (2,245); Female:  48.32 (2,109); Unknown:  0.25% (11)
  • Generation 7:  4th Great Grandchildren–Generation OPEN
    • Born:  3,342 known/reported
    • Living: estimated 85%+  [47 known deceased]
    • Birth Range:  1960-present
      • First birth in Generation 7:  Jun 1960–Shane Lloyd Crossley
    • Surnamed Belnap:  314 (9.40%)
  • Generation 8:  5th Great Grandchildren–Generation OPEN
    • Born:  392 known/reported
    • Living: estimated 95%+ [3 known deceased]
    • Birth Range:  1980-present
      • First birth in Generation:  1980 (male) Hines
    • Surnamed Belnap:  17 (4.34%)
  • Generation 9:  6th Great Grandchildren–Generation OPEN
    • Born:  3 known/reported
    • Living:  estimated 98%
  • Generation 10:  7th Great Grandchildren–estimated 0 Born–Generation NOT YET OPEN

TOTAL DIRECT DESCENDANTS IN FAMILY DATABASE (includes natural-born and adopted/sealed children; does not include spouses;):  10,677 (as of 26 May 2017)  (direct descendants including spouses:  15,376)

TOTAL ESTIMATED DIRECT DESCENDANTS:  between 12,500 – 14,000

Gilbert Belnap Descendants (by Family Branch)

Some branches of Gilbert Belnap’s family are comparatively quite prolific–particularly Martha Jane.  Other branches are relatively less fecund.  Below is a list of total number of descendants by family branch, not including spouses, based on family database records (as of 26 May 2017).  (The total number of Gilbert’s descendants when broken out by branch can exceed Gilbert’s total number of descendants due to “self relationships”; see below.)

  • Gilbert Rosel = 340
  • John McBride = 1 (died young)
  • Reuben =  816
  • Joseph =  938
  • Martha Jane = 1,838
  • Hyrum = 732
  • Augustus Weber = 912
  • Volney = 1 (died young)
  • Vinson Knight = 142
  • Amasa = 302
  • Adaline Lorinda = 340
  • Mary Louisa = 379
  • Lola Almira = 369
  • William James = 502
  • Oliver = 1,211
  • Francis Marion = 1,081
  • Isadora Estella = 826

Self Relationships of Gilbert Belnap Descendants

As the posterity of Gilbert Belnap continues to grow exponentially each succeeding generation, the likelihood of intermarriage among his descendants also increases.  Here are currently known instances of consanguinity where descendants of Gilbert have married each other (with or without issue):

  • First Cousins:  David Evan Belnap (1896-1996), grandson of Gilbert Belnap and Adaline Knight through their child Amasa, married Ethel Beamy Belnap (1896-1980), granddaughter of Gilbert Belnap and Adaline Knight through their child Reuben.  (No issue.)
  • Second Cousins:  Aaron Belnap Ross (1917-1973), great grandson of Gilbert Belnap and Adaline Knight through their child Joseph, married Elma Hall Belnap (1916-1995), great granddaughter of Gilbert Belnap and Henrietta McBride through their child Francis Marion.  (Issue.)
  • Third Cousins:  Jimmy Richard Williams (1938-unknown), great great grandson of Gilbert Belnap and Henrietta McBride through their child Francis Marion, married LaRae Greenwell (1938-unknown), great great granddaughter of Gilbert Blenap and Adaline Knight through their child Martha Jane.  (Issue.)

Self Relationships of Gilbert Belnap, Adaline Knight, and Henrietta McBride

Perhaps most everyone residing outside Appalachia is concerned about inbreeding.  However, if we trace our ancestry back far enough, each of us is related to ourselves—many times over.  Such known “self relationships” (sometimes also referred to as “consanguine,” “duplicate,” “double” relationships or ancestors or a “collapsed” or “collapsing” pedigree) are not uncommon, especially for Americans with extensive and well-documented family trees extending into the colonial New England era and the royal houses of Europe.  For example, Queen Elizabeth II is a direct descendant of Sir Robert Belknap at least seven different ways.  Her daughter-in-law, Diana, Princess of Wales, is a direct descendant of Sir Robert Belknap at least 3 different ways.  Therefore, both Princes William and Harry are “Belknaps” through 10 known separate lines of descent.  If we were able to identify all of our ancestors for 25 generations (back about 900 years), each of us would have over 16 million ancestors–more than the entire population of most countries that existed back then.  Certainly, many of those 16 million+ ancestors would be duplicates.  Go back just five more generations–to 30 generations or about 1,000 years ago–and the total number of one’s ancestors would equal over half a billion, more than the entire then-existing world population!

NOTE: Calculating degrees of consanguinity through “self relationships” becomes particularly confusing where additional duplicate ancestors, as found below, are found among an already self-shared ancestry.

Known Self-Relationships (showing first known self-related direct ancestor):

  • Duplicate ancestors of David Knight (1721-1804) (2nd great grandfather of Adaline Knight)
    • William Backus (about 1606-1664) and Elizabeth ____ (before 1610-1643)
  • Duplicate ancestors of Rodolphus Knight (1768-1809) (grandfather of Adaline Knight)
    • Francis Griswold (1635-1671) and Mary Tracy (about 1633-unknown)
  • Duplicate ancestors of Betty Waterman (1724-1791) (2nd great grandmother of Adaline Knight; grandmother of Rodolphus Knight)
    • Thomas Tracy (1610-1685) [through separate spouses]
  • Duplicate ancestors of Rizpah Lee (1774-1853) (grandmother of Adaline Knight)
    • Henry Lee (1686-1745) and Rebecca Heywood (1689-1725)
  • Duplicate ancestors of Hannah Morse (1720-1750) (2nd great grandmother of Adaline Knight; grandmother of Rizpah Lee)
    • Joseph Morse (1637-1677) and Susanna Shattuck (1643-1716)
  • Duplicate ancestors of Abigail Mead (1770-1854) (grandmother of Adaline Knight and Henrietta McBride)
    • John Mead (about 1634-1699) and Hannah Potter (about 1638-after 1700)
  • Duplicate ancestors of Enos Mead (1721-after 1794) (2nd great grandfather of Adaline Knight and Henrietta McBride; grandfather of Abigail Mead)
    • Robert Husted (about 1596-after 1652) and Elizabeth Miller (1614-1652)

 

Last update:  26 May 2017