JL
James Lawrence — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Carroll-County, Maryland
Our Model Tree links this James Lawrence across the 1930 and 1940 US Censuses in Carroll-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 11-person household.
Age 15
b. ~1925
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Maryland |
| Surname | Lawrence |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Taneytown |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Industry | S |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Taneytown |
| Est. Birth Year | ~1925 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Dolly Lawrence | Daughter | — | 17 | ~1923 |
| Doris Lawrence | Daughter | — | 11 | ~1929 |
| Betty Lawrence | Daughter | — | 14 | ~1926 |
| Helen Lawrence | Daughter | — | 7 | ~1933 |
| Viola Lawrence | Daughter | — | 18 | ~1922 |
| Norman Lawrence | Head | — | 44 | ~1896 |
| James Lawrence | Son | — | 15 | ~1925 |
| Judith Lawrence | Son | — | 12 | ~1928 |
| Robert Lawrence | Son | — | 20 | ~1920 |
| Allen Lawrence | Son | — | 4 | ~1936 |
| Blanche Lawrence | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Carroll, Maryland
Son, age 5
Carroll, Maryland · implied b. ~1925 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Carroll-County, Maryland
Son, age 15
Carroll-County, Maryland · implied b. ~1925 — 11 household members
| Surname | Lawrence |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Taneytown |
| 1935 Residence (County) | Carroll |
| Industry | S |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 James Lawrence across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Lawrence
Son · 1940 · age 15 · b. ~1925 · Maryland
★ You are viewing this record
Sibling
Helen Lawrence
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Lawrence
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolly Lawrence
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Lawrence
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Lawrence
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Lawrence
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Lawrence
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Judith Lawrence
Sibling · 1940 · age 12
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 — Carroll-County, Maryland
Open full size
1940 US Federal Census — Carroll-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01544-00063)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wade H. Jr. Harner | 24 | Son | Labour | Maryland |
| 2 | Daniel J. Null | 53 | Head | Farmer | Maryland |
| 3 | Noda V. Null | 52 | Wife | — | Maryland |
| 4 | Jesse G. Angell | 65 | Head | Farmer | Maryland |
| 5 | Effie B. Angell | 63 | Wife | — | Pennsylvania |
| 6 | Vernon S. Brower | 62 | Head | Farmer | Maryland |
| 7 | Sarah J. Brower | 57 | Wife | — | Maryland |
| 8 | Sterling R. Brower | 29 | Son | Labour | Maryland |
| 9 | Paul F. Brower | 23 | Son | Labour | Maryland |
| 10 | Treva M. Brower | 16 | Daughter | — | Maryland |
| 11 | Harry J. Crouse | 52 | Head | Farmer | Maryland |
| 12 | Mary H. Crouse | 51 | Wife | — | Maryland |
| 13 | Mary E. Crouse | 21 | Daughter | Loopshaper | Maryland |
| 14 | Catharine R. Crouse | 19 | Daughter | Loopshaper | Maryland |
| 15 | Walter S. Keefer | 49 | Head | Farmer | Maryland |
| 16 | Savilla R. Keefer | 47 | Wife | — | Maryland |
| 17 | Charles H. Slick | 17 | Hired | Labour | Maryland |
| 18 | Mary Ellen Lawrence | 70 | Head | — | Maryland |
| 19 | Wilbert Lawrence | 28 | Son | Carpenter | Maryland |
| 20 | Evelyn C. Lawrence | 27 | Daughter | Binder | Maryland |
| 21 | Dorothy C. Lawrence | 9 | Granddaughter | — | Maryland |
| 22 | Shirley D. J. Lawrence | 8 | Daughter | — | Maryland |
| 23 | Myra A. Lawrence | 5 | Daughter | — | Maryland |
| 24 | Charlotte M. Lawrence | 5 | Daughter | — | Maryland |
| 25 | Norman A. Lawrence | 44 | Head | Farmer | Maryland |
| 26 | Blanche Lawrence | 42 | Wife | — | Maryland |
| 27 | Robert Lawrence | 20 | Son | Labour | Maryland |
| 28 | Viola Lawrence | 18 | Daughter | Labour | Maryland |
| 29 | Dolly Dolyne Lawrence | 17 | Daughter | — | Maryland |
| 30 | James Lawrence THIS PERSON | 15 | Son | — | Maryland |
| 31 | Betty Lawrence | 14 | Daughter | — | Maryland |
| 32 | Judith Lawrence | 12 | Son | — | Maryland |
| 33 | Doris Lawrence | 11 | Daughter | — | Maryland |
| 34 | Allen Lawrence | 4 | Son | — | Maryland |
| 35 | Helen Lawrence | 7 | Daughter | — | Maryland |
| 36 | Arpent Lawrence | 30 | Head | Carpenter | Maryland |
| 37 | Clara V. Lawrence | 27 | Wife | Trimming Table | Maryland |
| 38 | Arlene V. Lawrence | 9 | Daughter | — | Maryland |
| 39 | Glen C. Oler | 42 | Head | Farmer | Maryland |
| 40 | Mary A. Oler | 39 | Wife | — | Maryland |
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)