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Robert Williamson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kent-County, Michigan
Our Model Tree links this Robert Williamson across the 1920, 1930 and 1940 US Censuses in Kent-County, Michigan (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1919), then head of a 2-person household.
Age 21
b. ~1919
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kent-County, Michigan |
| Surname | Williamson |
| Given Name | Robert Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Grand Rapids |
| 1935 Residence (County) | Kent |
| Additional Details | |
| Occupation | shearer |
| Industry | furniture factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1087 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Shearer |
| Township / Ward | Grand Rapids |
| Est. Birth Year | ~1919 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Williamson | Son | — | 21 | ~1919 |
| Blanche Williamson | Head | — | 69 | ~1871 |
Census Appearances
1920
Kent, Michigan
Son, age
Kent, Michigan · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | Robert G. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Kent, Michigan
Son, age 11
Kent, Michigan · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | Robert G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Kent-County, Michigan
Son, age 21
Kent-County, Michigan · implied b. ~1919 — 2 household members
| Surname | Williamson |
| Given Name | Robert Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Grand Rapids |
| 1935 Residence (County) | Kent |
| Occupation | shearer |
| Industry | furniture factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1087 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Robert Williamson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Williamson (~0.92 confidence) and father John Williamson (~0.92 confidence) and mother Blanche Williamson (~0.92 confidence) and mother Lizzie Williamson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Williamson
b. ~1894
Source father
● Household
· direct · ~0.92
Father
John Williamson
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Blanche Williamson
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Lizzie Williamson
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Williamson
Son · 1940 · age 21 · b. ~1919 · Michigan
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kent-County, Michigan
Open full size
1940 US Federal Census — Kent-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01902-00617)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Burton Barritt | 83 | Father-in-law | — | New York |
| 2 | Edward Freeland | 36 | Head | Installer | Michigan |
| 3 | Mildred Freeland | 36 | Wife | — | Michigan |
| 4 | Beverley Freeland | 13 | Daughter | — | Michigan |
| 5 | Edward Freeland | 11 | Son | — | Michigan |
| 6 | Shirley Freeland | 8 | Daughter | — | Michigan |
| 7 | Lewis A. Mcgee | 62 | Head | Librarian | Michigan |
| 8 | Genevieve A. Mcgee | 60 | Sister | — | Michigan |
| 9 | Katherine M. Mcgee | 52 | Sister | Supervisor | Michigan |
| 10 | Alfred J. Loring | 66 | Head | Retired R.R. | Michigan |
| 11 | Hattie L. Loring | 62 | Wife | — | Michigan |
| 12 | Blanche Williamson | 69 | Head | — | Indiana |
| 13 | Robert Allen Williamson THIS PERSON | 21 | Son | Shearer | Michigan |
| 14 | Archie White | 30 | Head | Tool & Die | Michigan |
| 15 | Alice White | 25 | Wife | — | Michigan |
| 16 | Joan White | 7 | Daughter | — | Michigan |
| 17 | Richard White | 1 | Son | — | Michigan |
| 18 | Jacob Peterson | 27 | Head | Polisher | Michigan |
| 19 | Gertrude Peterson | 24 | Wife | — | Minnesota |
| 20 | Allen Jay Peterson | 1 | Son | — | Michigan |
| 21 | Eldred Crandall | 58 | Head | Salesman | Michigan |
| 22 | Rose Crandall | 58 | Wife | Cook | Michigan |
| 23 | Jerry Crandall | 21 | Daughter | — | Michigan |
| 24 | James Ronald Frank | 39 | Head | Contractor | Michigan |
| 25 | Hazel Frank | 35 | Wife | — | Michigan |
| 26 | Melvin Frank | 17 | Son | — | Michigan |
| 27 | Donald Frank | 15 | Son | — | Michigan |
| 28 | William F. Rittenger | 70 | Head | Barber | Michigan |
| 29 | Agnes Rittenger | 67 | Wife | — | Michigan |
| 30 | Loyd W. Rittenger | 27 | Head | Barber | Michigan |
| 31 | Dorothy Rittenger | 21 | Wife | — | Michigan |
| 32 | William Rittenger | 9 | Son | — | Michigan |
| 33 | Glenn Marwan | 51 | Head | Salesman | Michigan |
| 34 | Nellie Marwan | 48 | Wife | — | Michigan |
| 35 | Glenn E. Jr. Marwan | 7 | Son | — | Michigan |
| 36 | George R. Marwan | 6 | Son | — | Michigan |
| 37 | David E. Marwan | 2 | Son | — | Michigan |
| 38 | Benedict H. Green | 55 | Head | — | Canada French |
| 39 | Loyd James Green | 31 | Son | Switchman | Michigan |
| 40 | Donald Jerome Green | 30 | Son | Air Corps | Michigan |
Pedigree Summary
Robert
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 1940 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)