ML
Mary Lawrence — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kenton-County, Kentucky
Our Model Tree links this Mary Lawrence across the 1920, 1930 and 1940 US Censuses in Kenton-County, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 2-person household.
Age 71
b. ~1869
Female
Head
Born: Kentucky
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Kenton-County, Kentucky |
| Surname | Lawrence |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | Covington city |
| 1935 Residence (County) | Kenton |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Covington City |
| Est. Birth Year | ~1869 |
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 Lawrence | Head | — | 71 | ~1869 |
| Edgar Lawrence | Son | — | 38 | ~1902 |
Census Appearances
1920
Kenton, Kentucky
Head, age 51
Kenton, Kentucky · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| Father's Birthplace | Russia |
| Mother's Birthplace | Oldenburg |
| Occupation | Laundress |
| Industry | At Home |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Kenton, Kentucky
Head, age 61
Kenton, Kentucky · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20.00 |
| Veteran | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Kenton-County, Kentucky
Head, age 71
Kenton-County, Kentucky · implied b. ~1869 — 2 household members
| Surname | Lawrence |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | Covington city |
| 1935 Residence (County) | Kenton |
| Highest Grade | No 5 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Lawrence across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lawrence
Head · 1940 · age 71 · b. ~1869 · Kentucky
★ 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 — Kenton-County, Kentucky
Open full size
1940 US Federal Census — Kenton-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01324-00075)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joyce Rauch | 4 | Daughter | — | Kentucky |
| 42 | Mary Rauch | 70 | Mother | — | Kentucky |
| 43 | Frank Pfitzer | 47 | Head | Machinist | Kentucky |
| 44 | Loretta D. Pfitzer | 40 | Wife | — | Kentucky |
| 45 | Alice Pfitzer | 12 | Daughter | — | Kentucky |
| 46 | Joan Pfitzer | 9 | Daughter | — | Kentucky |
| 47 | Suzanne Pfitzer | 6 | Daughter | — | Kentucky |
| 48 | Harry Ungerer | 54 | Head | Sheet Metal Worker | Kentucky |
| 49 | Catherine Ungerer | 50 | Wife | — | Kentucky |
| 50 | Clarence Ungerer | 24 | Son | Clerk | Kentucky |
| 51 | Stanley Ungerer | 22 | Son | Clerk | Kentucky |
| 52 | Albert Ungerer | 14 | Son | — | Kentucky |
| 53 | August Mueller | 52 | Head | General Machinist | Alsace Lorraine |
| 54 | Laura Mueller | 48 | Wife | — | Kentucky |
| 55 | Dorothy Mueller | 20 | Daughter | Tailoress | Kentucky |
| 56 | John Mueller | 18 | Son | Seminary | Kentucky |
| 57 | Fred Schwab | 61 | Uncle | — | Kentucky |
| 58 | William Bauerle | 45 | Head | Clerk | Kentucky |
| 59 | Lillian Bauerle | 46 | Wife | — | Kentucky |
| 60 | William Jr. Bauerle | 14 | Son | — | Kentucky |
| 61 | Lillian Bauerle | 12 | Daughter | — | Kentucky |
| 62 | Carol Bauerle | 10 | Daughter | — | Kentucky |
| 63 | Elaine Bauerle | 7 | Daughter | — | Kentucky |
| 64 | Mary Lawrence THIS PERSON | 71 | Head | — | Kentucky |
| 65 | Edgar Lawrence | 38 | Son | Coat Finisher | Kentucky |
| 66 | Carl Gronfeld | 30 | Head | Jeweler | Kentucky |
| 67 | Nellie R. Gronfeld | 33 | Wife | — | Kentucky |
| 68 | La Vera Adkins | 13 | Step-child | — | Kentucky |
| 69 | Anna R. Jenson | 54 | Head | Domestic | Kentucky |
| 70 | Catherine Norbery | 43 | Sister | Saleslady | Kentucky |
| 71 | Charles Reenan | 53 | Head | Sanitary Guard | Ohio |
| 72 | Levina Reenan | 44 | Wife | — | Kentucky |
| 73 | Rosemary Reenan | 15 | Daughter | — | Kentucky |
| 74 | Clifford Trunnell | 27 | Head | Bottler | Kentucky |
| 75 | Lillian Trunnell | 26 | Wife | — | Kentucky |
| 76 | Lois Trunnell | 1 | Daughter | — | Kentucky |
| 77 | Carl B. Kallmeyer | 34 | Head | Candy Maker | Kentucky |
| 78 | Sylvia Kallmeyer | 31 | Wife | — | Kentucky |
| 79 | Fred Kemper | 61 | Head | Freight Agent | Ohio |
| 80 | Lillian Kemper | 52 | Wife | — | Kentucky |
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)