MH
Mary Hoffman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Macomb-County, Michigan
Our Model Tree links this Mary Hoffman across the 1920, 1930 and 1940 US Censuses in Macomb-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 2-person household.
Age 65
b. ~1875
Female
Head
Born: Michigan
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Macomb-County, Michigan |
| Surname | Hoffman |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Michigan |
| 1935 Residence (City) | Mt. Clemens |
| 1935 Residence (County) | Macomb |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Mt Clemens |
| Est. Birth Year | ~1875 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Hoffman | Head | — | 65 | ~1875 |
| Howard Hoffman | Son | — | 24 | ~1916 |
Census Appearances
1920
Macomb, Michigan
Spouse, age 44
Macomb, Michigan · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Macomb, Michigan
Spouse, age 55
Macomb, Michigan · implied b. ~1875 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffmann |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 21 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Macomb-County, Michigan
Head, age 65
Macomb-County, Michigan · implied b. ~1875 — 2 household members
| Surname | Hoffman |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Michigan |
| 1935 Residence (City) | Mt. Clemens |
| 1935 Residence (County) | Macomb |
| Highest Grade | No 8 |
| 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 Mary Hoffman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hoffman
Head · 1940 · age 65 · b. ~1875 · 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 — 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-t0627-01783-00831)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles J. Ferrante | 53 | Head | Operator | Italy |
| 2 | Theresa Ferrante | 43 | Wife | — | Hungary |
| 3 | Lillian Ferrante | 12 | Daughter | — | Michigan |
| 4 | Albert Ferrante | 13 | Son | — | Michigan |
| 5 | Henry P. Lacroix | 50 | Head | Embalmer | Michigan |
| 6 | Zoia A. Lacroix | 52 | Wife | — | Michigan |
| 7 | Norman N. Lacroix | 31 | Son | Teller | Michigan |
| 8 | Thomas B. Lacroix | 29 | Son | Bookkeeper | Michigan |
| 9 | Albert E. Lacroix | 24 | Son | Eye Doctor | Michigan |
| 10 | Selma Laforest | 76 | Lodger | — | Canada |
| 11 | Phillip Thomas | 82 | Lodger | — | Michigan |
| 12 | Mabel Martell | 21 | Lodger | Bookkeeper | Michigan |
| 13 | Alfred Neff | 32 | Head | Dipper | Michigan |
| 14 | Marie Neff | 28 | Wife | — | Michigan |
| 15 | Doris J. Neff | 8 | Daughter | — | Michigan |
| 16 | Joyce M. Neff | 4 | Daughter | — | Michigan |
| 17 | Janice E. Neff | 2 | Daughter | — | Michigan |
| 18 | Mary A. Neff | 1 | Daughter | — | Michigan |
| 19 | William F. Daugherty | 48 | Head | Heisman | Ohio |
| 20 | Mary-Jane Daugherty | 43 | Wife | — | Pennsylvania |
| 21 | George H. Gobble | 67 | Lodger | — | Pennsylvania |
| 22 | Emma M. Gobble | 67 | Lodger | — | Pennsylvania |
| 23 | Beverly A. Lassen | 7 | Lodger | — | Ohio |
| 24 | Merle E. Grambin | 35 | Head | Salesman | Michigan |
| 25 | Helen Grambin | 34 | Wife | — | Michigan |
| 26 | Helen M. Grambin | 4 | Daughter | — | Pennsylvania |
| 27 | Louise D. Stockwell | 71 | Lodger | — | Michigan |
| 28 | Nathan L. Gray | 30 | Head | Operator | Kentucky |
| 29 | Edna E. Gray | 24 | Wife | — | Kentucky |
| 30 | Albert G. Mathews | 64 | Head | — | Michigan |
| 31 | Margaret Mathews | 65 | Wife | — | Michigan |
| 32 | Arthur J. Talbot | 58 | Head | Plumbing | England |
| 33 | Leona Talbot | 54 | Wife | — | Michigan |
| 34 | Minnie Talbot | 64 | Mother | — | Michigan |
| 35 | Ida A. Witt | 69 | Head | — | Kansas |
| 36 | Jacob W. Nyfield | 22 | Son | Driver | Michigan |
| 37 | Marie Nyfield | 22 | Daughter-in-law | — | Michigan |
| 38 | Jacob W. Jr. Nyfield | 0 | Grandson | — | Michigan |
| 39 | Mary A. Hoffman THIS PERSON | 65 | Head | — | Michigan |
| 40 | Howard A. Hoffman | 24 | Son | — | Michigan |
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)