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Frank Mason — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macomb-County, Michigan
Our Model Tree links this Frank Mason across the 1920, 1930 and 1940 US Censuses in Macomb-County, Michigan (XGBoost, ~Confirmed), with identified parents Martin & Thomas — first a son (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macomb-County, Michigan |
| Surname | Mason |
| Given Name | Frank |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | St. Clair Shores Village |
| 1935 Residence (County) | Macomb |
| Additional Details | |
| Occupation | assembler |
| Industry | automobile plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1970 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Assembler |
| Township / Ward | St Clair Shores Village |
| Est. Birth Year | ~1910 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Florence Mason | Daughter | — | 21 | ~1919 |
| Frank Mason | Son | — | 30 | ~1910 |
| Martin Mason | Head | — | 78 | ~1862 |
| Mary Mason | Spouse | — | 68 | ~1872 |
Census Appearances
1920
Macomb, Michigan
Son, age 9
Macomb, Michigan · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Frank M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Macomb, Michigan
Son, age 20
Macomb, Michigan · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Maison |
| Given Name | Frank M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Laborer |
| Industry | General Work |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Macomb-County, Michigan
Son, age 30
Macomb-County, Michigan · implied b. ~1910 — 4 household members
| Surname | Mason |
| Given Name | Frank |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | St. Clair Shores Village |
| 1935 Residence (County) | Macomb |
| Occupation | assembler |
| Industry | automobile plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1970 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| 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 Frank Mason across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Mason (~0.92 confidence) and father Thomas Mason (~0.92 confidence) and mother Mary Maison (~0.92 confidence) and mother Mary Mason (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Mason
b. ~1862
Source father
● Household
· direct · ~0.92
Father
Thomas Mason
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Mary Maison
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Mary Mason
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Mason
Son · 1940 · age 30 · b. ~1910 · Michigan
★ You are viewing this record
Sibling
Florence Mason
Sibling · 1940 · age 21
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
1940 US Federal Census — Macomb-County, Michigan
Open full size
1940 US Federal Census — Macomb-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01783-00385)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Garth W. Snider | 17 | son | — | Michigan |
| 2 | Donald S. Snider | 15 | son | — | Michigan |
| 3 | Janice H. Snider | 13 | daughter | — | Michigan |
| 4 | Edgar C. Keller | 29 | head | Stitcher | Michigan |
| 5 | Dorothy E. Keller | 24 | wife | — | Michigan |
| 6 | Sally G. Keller | 5 | daughter | — | Michigan |
| 7 | Gerald E. Keller | 0 | son | — | Michigan |
| 8 | Neal Brenkert | 44 | head | Production Manager | Michigan |
| 9 | Rita G. Brenkert | 37 | wife | — | New York |
| 10 | Paul K. Brenkert | 10 | son | — | Michigan |
| 11 | Thomas B. Lewis | 50 | head | Checker | England |
| 12 | Helen D. Lewis | 57 | wife | — | England |
| 13 | Doris M. Lewis | 21 | daughter | Stenographer | England |
| 14 | Stanley T. Lewis | 15 | son | — | Michigan |
| 15 | Ray Edwards | 48 | head | Job Setter | Illinois |
| 16 | Elma D. Edwards | 50 | wife | — | Illinois |
| 17 | Ray D. Edwards | 26 | son | Assembler | Illinois |
| 18 | Martin T. Mason | 78 | head | Farmer | Michigan |
| 19 | Mary Mason | 68 | wife | — | Michigan |
| 20 | Frank Mason THIS PERSON | 30 | son | Assembler | Michigan |
| 21 | Florence Mason | 21 | daughter | — | Michigan |
| 22 | Connie M. Bower | 59 | head | — | Michigan |
| 23 | Bernice C. Bower | 34 | daughter | Motion Serv. | Michigan |
| 24 | Ruth M. Bower | 28 | daughter | — | Michigan |
| 25 | Eleanor M. Bower | 23 | daughter | Cashier | Michigan |
| 26 | Betty B. Bower | 20 | daughter | Molder | Michigan |
| 27 | John R. King | 50 | head | Auto Salesman | Michigan |
| 28 | Ruth C. King | 46 | wife | — | Michigan |
| 29 | Ruth A. King | 20 | daughter | — | Michigan |
| 30 | Rose M. King | 18 | daughter | — | Michigan |
| 31 | Mary J. King | 16 | daughter | — | Michigan |
| 32 | Jack R. King | 14 | son | — | Michigan |
| 33 | Patricia J. King | 13 | daughter | — | Michigan |
| 34 | Joseph M. King | 11 | son | — | Michigan |
| 35 | Joseph E. Peck | 34 | head | Assembler | Michigan |
| 36 | Retha J. Peck | 35 | wife | — | Wisconsin |
| 37 | Douglas P. Peck | 11 | son | — | Michigan |
| 38 | Patricia J. Peck | 7 | daughter | — | Michigan |
| 39 | Robert M. Peck | 6 | son | — | Michigan |
| 40 | Lawrence J. Peck | 3 | son | — | Michigan |
Related Census Records
Pedigree Summary
Frank + 1 sibling
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)