LM
Lawrence Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oakland-County, Michigan
Our Model Tree links this Lawrence Martin across the 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 11-person household.
Age 24
b. ~1916
Male
Son
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Oakland-County, Michigan |
| Surname | Martin |
| Given Name | Lawrence R Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Ferndale City |
| 1935 Residence (County) | Oakland |
| Additional Details | |
| Occupation | Press Operator |
| Industry | Auto Body Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 340 |
| Highest Grade | No 10 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Press Operator |
| Township / Ward | Ferndale City |
| Est. Birth Year | ~1916 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Joseph Martin | Son | — | 15 | ~1925 |
| Anita Martin | Other | — | 19 | ~1921 |
| Violet Martin | Daughter | — | 5 | ~1935 |
| Loretta Martin | Spouse | — | 44 | ~1896 |
| Dorothy Martin | Daughter | — | 16 | ~1924 |
| Lawrence Martin | Son | — | 24 | ~1916 |
| Lawrence Martin | Head | — | 44 | ~1896 |
| Mary Martin | Daughter | — | 3 | ~1937 |
| Betty Martin | Daughter | — | 10 | ~1930 |
| James Martin | Son | — | 18 | ~1922 |
| Bernice Martin | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Oakland, Michigan
Son, age 14
Oakland, Michigan · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Canada French |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Oakland-County, Michigan
Son, age 24
Oakland-County, Michigan · implied b. ~1916 — 11 household members
| Surname | Martin |
| Given Name | Lawrence R Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Ferndale City |
| 1935 Residence (County) | Oakland |
| Occupation | Press Operator |
| Industry | Auto Body Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 340 |
| Highest Grade | No 10 |
| 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 Lawrence Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lawrence Martin
Son · 1940 · age 24 · b. ~1916 · Michigan
★ You are viewing this record
Sibling
James Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Martin
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Martin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Martin
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Martin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Martin
Sibling · 1940 · age 10
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 — Oakland-County, Michigan
Open full size
1940 US Federal Census — Oakland-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01799-00244)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ralph A Goulin | 5 | Son | — | Detroit |
| 42 | Ernest D Billingsley | 33 | Head | Truck Driver | Tennessee |
| 43 | Bernice Billingsley | 34 | Wife | Housewife | Indiana |
| 44 | Barbara L Norton | 2 | Lodger | — | Michigan |
| 45 | John E Sawyer | 36 | Head | Machinist | Michigan |
| 46 | Margaret A Sawyer | 32 | Wife | Housewife | Wisconsin |
| 47 | John A Jr Sawyer | 9 | Son | — | Michigan |
| 48 | Kathleen E Sawyer | 5 | Daughter | — | Michigan |
| 49 | Carl Karius | 25 | Head | Welder | Illinois |
| 50 | Anna E Karius | 26 | Wife | Housewife | New York |
| 51 | Robert E Karius | 4 | Son | — | Michigan |
| 52 | Michael S Karius | 3 | Son | — | Michigan |
| 53 | Samuel Redpath | 44 | Head | Press Operator | Canada |
| 54 | Ina Redpath | 37 | Wife | Housewife | Scotland |
| 55 | Irene M Redpath | 15 | Daughter | — | California |
| 56 | Gordon W Redpath | 14 | Son | — | Canada |
| 57 | Evelyn M Redpath | 12 | Daughter | — | Canada |
| 58 | Samuel J Redpath | 10 | Son | — | Michigan |
| 59 | Lawrence R Martin | 44 | Head | Machinist | Canada |
| 60 | Loretta Martin | 44 | Wife | Housewife | Michigan |
| 61 | James L Martin | 18 | Son | Service Station Attendant | Michigan |
| 62 | Dorothy E Martin | 16 | Daughter | — | Michigan |
| 63 | Joseph E Martin | 15 | Son | — | Michigan |
| 64 | Betty R Martin | 10 | Daughter | — | Michigan |
| 65 | Bernice J Martin | 7 | Daughter | — | Michigan |
| 66 | Violet B Martin | 5 | Daughter | — | Michigan |
| 67 | Mary J Martin | 3 | Daughter | — | Michigan |
| 68 | Lawrence R Jr Martin THIS PERSON | 24 | Son | Press Operator | Michigan |
| 69 | Anita F Martin | 19 | Daughter-in-law | Housewife | Minnesota |
| 70 | Leonard J Weston | 23 | Head | Truck Driver | Michigan |
| 71 | Betty J Weston | 18 | Wife | Housewife | Michigan |
| 72 | Marcus E Weston | 1 | Son | — | Michigan |
| 73 | John D Merrill | 70 | Father-in-law | Labor | Michigan |
| 74 | Orla R Eldred | 51 | Head | Driver | Ohio |
| 75 | Florence E Eldred | 46 | Wife | Housewife | Ohio |
| 76 | Max A Eldred | 27 | Son | Mill Hand | Ohio |
| 77 | Marilyn J Eldred | 17 | Daughter | — | Ohio |
| 78 | Frank W Mecha | 49 | Head | Assembler | Czechoslovakia |
| 79 | Florence Mecha | 29 | Wife | Housewife | Czechoslovakia |
| 80 | Robert Mecha | 7 | 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)