JA
John Alexander — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mclean, Illinois
Our Model Tree links this John Alexander across the 1910, 1920 and 1930 US Censuses in Mclean, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1909), then head of a 5-person household.
Age 21
b. ~1909
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mclean, Illinois |
| Surname | Alexander |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Bloomington City |
| Est. Birth Year | ~1909 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Celia Alexander | Daughter | — | 35 | ~1895 |
| John Alexander | Head | — | 62 | ~1868 |
| Lura Alexander | Other | — | 58 | ~1872 |
| Lee Alexander | Son | — | 19 | ~1911 |
| John Alexander | Son | — | 21 | ~1909 |
Census Appearances
1910
Mclean, Illinois
Son, age 1
Mclean, Illinois · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Mclean, Illinois
Son, age 12
Mclean, Illinois · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Mclean, Illinois
Son, age 21
Mclean, Illinois · implied b. ~1909 — 5 household members
| Surname | Alexander |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Alexander across 3 US Census years (1910, 1920 and 1930) in Mclean, Illinois, using XGBoost record linkage. Identified parents: father John Alexander (~0.92 confidence) and father John Alexander (~0.92 confidence) and mother Laura Alexander (~0.92 confidence) and mother Clara Alexander (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Alexander
b. ~1867
Source father
● Household
· direct · ~0.92
Father
John Alexander
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Laura Alexander
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Clara Alexander
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Alexander
Son · 1930 · age 21 · b. ~1909 · Illinois
★ You are viewing this record
Sibling
Celia Alexander
Sibling · 1930 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lee Alexander
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Mclean, Illinois
Open full size
1930 US Federal Census — Mclean, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel535:0301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Chalmer C. Taylor | 31 | Head | Attorney | Illinois |
| 52 | Revid Taylor | 27 | Wife-H | — | Missouri |
| 53 | James Taylor | 1 | Son | — | Illinois |
| 54 | Rose Chapman | 52 | Servant | Housework | Illinois |
| 55 | Isabelle M. Johnson | 41 | Head-H | — | Illinois |
| 56 | Marianne Johnson | 16 | Daughter | — | Illinois |
| 57 | Lemuel D. Morris | 43 | Head | Traveling Salesman | Kentucky |
| 58 | Olive G. Morris | 43 | Wife-H | — | Kentucky |
| 59 | John C. Morris | 16 | Son | — | Kentucky |
| 60 | Irvin H. Burke | 58 | Head | Traveling Salesman | Indiana |
| 61 | Chloe A. Burke | 55 | Wife-H | — | Indiana |
| 62 | Mary O. Brown | 14 | Niece | — | Indiana |
| 63 | Herman Livingston | 55 | Head | Merchant | Kentucky |
| 64 | Dorothy Livingston | 44 | Wife-H | — | Kentucky |
| 65 | Louis B. Mervin | 60 | Head | General Manager | New York |
| 66 | Jessie H. Mervin | 58 | Wife-H | — | Illinois |
| 67 | Theodore Moratz | 52 | Head | General Manager | Illinois |
| 68 | Vera Moratz | 48 | Wife-H | — | Michigan |
| 69 | William G. Howell | 52 | Head | Stationary Engineer | California |
| 70 | Winifred S. Howell | 45 | Wife-H | — | Australia |
| 71 | Jessie D. Howell | 20 | Daughter | — | Illinois |
| 72 | Eleanor S. Howell | 17 | Daughter | — | Illinois |
| 73 | Albert H. Caldwell | 28 | Head | Agency Supervisor | Iowa |
| 74 | Sylvia H. Caldwell | 43 | Wife-H | Stenographer | Pennsylvania |
| 75 | Elden G. Caldwell | 18 | Son | — | Iowa |
| 76 | Raymond M. Caldwell | 15 | Son | — | Iowa |
| 77 | Emmett H. Priller | 29 | Head | Salesman | Illinois |
| 78 | Cecil G. Priller | 26 | Wife-H | Saleslady | Illinois |
| 79 | Dwight E. Beal | 41 | Head | Attorney | Illinois |
| 80 | Margaret M. Beal | 39 | Wife-H | — | Illinois |
| 81 | Mary Kruse | 43 | Servant | Housework | Illinois |
| 82 | Jesse E. Cameron | 41 | Head | President | Illinois |
| 83 | May J. Cameron | 44 | Wife-H | — | Illinois |
| 84 | Edward A. Wolfe | 35 | Head | Manager | Illinois |
| 85 | Violet S. Wolfe | 31 | Wife-H | — | Illinois |
| 86 | Carolyn Wolfe | 6 | Daughter | — | Illinois |
| 87 | George Robinson | 49 | Head | Stenographer | Indiana |
| 88 | Katherine Robinson | 47 | Sister-H | Publicity Clerk | Indiana |
| 89 | Arthur H. Bell | 72 | Head | Surveyor | Illinois |
| 90 | Delia Bell | 69 | Wife-H | — | Illinois |
| 91 | Hannah M. Sunqualand | 69 | Head-H | — | Illinois |
| 92 | Maude Paxton | 22 | Boarder | — | Illinois |
| 93 | Lee H. Clark | 21 | Nephew | Clerk | Illinois |
| 94 | John Alexander | 62 | Head | Attorney | Illinois |
| 95 | Lura Alexander | 58 | Wife-H | — | Illinois |
| 96 | Celia Alexander | 35 | Daughter | School Teacher | Illinois |
| 97 | John J. Alexander THIS PERSON | 21 | Son | — | Illinois |
| 98 | Lee Alexander | 19 | Son | — | Illinois |
| 99 | Phil S. Wood | 43 | Head | Salesman | Illinois |
| 100 | Elsie Wood | 41 | Wife-H | — | Illinois |
Pedigree Summary
John + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)