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Frank Lawrence — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Frank Lawrence across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Lawrence |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lowell |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Peter Lawrence | Head | — | 51 | ~1889 |
| Dolores Lawrence | Daughter | — | 8 | ~1932 |
| Irene Lawrence | Daughter | — | 5 | ~1935 |
| Norma Lawrence | Daughter | — | 6 | ~1934 |
| Frank Lawrence | Son | — | 15 | ~1925 |
| Euclid Lawrence | Son | — | 17 | ~1923 |
| Richard Lawrence | Son | — | 12 | ~1928 |
| Alfred Lawrence | Son | — | 9 | ~1931 |
| Mary Lawrence | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 5
Middlesex, Massachusetts · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 15
Middlesex-County, Massachusetts · implied b. ~1925 — 9 household members
| Surname | Lawrence |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell |
| 1935 Residence (County) | Middlesex |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Lawrence across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Lawrence
Son · 1940 · age 15 · b. ~1925 · Massachusetts
★ You are viewing this record
Sibling
Dolores Lawrence
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Lawrence
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norma Lawrence
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Lawrence
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Lawrence
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Euclid Lawrence
Sibling · 1940 · age 17
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01694-00373)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Caldwell | 29 | Head | Door-Man | Massachusetts |
| 2 | Marguerite Caldwell | 29 | Wife | Waist Maker | Massachusetts |
| 3 | Charles Caldwell | 5 | Son | — | Massachusetts |
| 4 | Frank Wiscarva | 32 | Head | Shoe Worker | New Hampshire |
| 5 | Madeline Wiscarva | 32 | Wife | Shoe Worker | Massachusetts |
| 6 | Frances Wiscarva | 5 | Son | — | Massachusetts |
| 7 | Sophie Gisiewicz | 48 | Head | Twister | Poland |
| 8 | Stanley Gisiewicz | 21 | Son | Shoe Trimmer | Massachusetts |
| 9 | Adele Gisiewicz | 20 | Daughter | Packer | Massachusetts |
| 10 | Victoria Gisiewicz | 16 | Daughter | — | Massachusetts |
| 11 | John Gisiewicz | 15 | Son | — | Massachusetts |
| 12 | Walter Gisiewicz | 11 | Son | — | Massachusetts |
| 13 | Blanche Gisiewicz | 9 | Daughter | — | Massachusetts |
| 14 | Elsie Brooks | 42 | Head | — | England |
| 15 | Henry Brooks | 15 | Son | — | Massachusetts |
| 16 | Mary Brooks | 10 | Daughter | — | Massachusetts |
| 17 | John Almeida | 46 | Head | Meat Cutter | Portugal |
| 18 | Amelia Almeida | 46 | Wife | — | Portugal |
| 19 | George Almeida | 18 | Son | Sales Clerk | Massachusetts |
| 20 | Amelia Almeida | 8 | Daughter | — | Massachusetts |
| 21 | Peter Lawrence | 51 | Head | Speeder Tender | Portugal |
| 22 | Mary Lawrence | 41 | Wife | — | Portugal |
| 23 | Euclid Lawrence | 17 | Son | — | Massachusetts |
| 24 | Frank Lawrence THIS PERSON | 15 | Son | — | Massachusetts |
| 25 | Richard Lawrence | 12 | Son | — | Massachusetts |
| 26 | Alfred Lawrence | 9 | Son | — | Massachusetts |
| 27 | Dolores Lawrence | 8 | Daughter | — | Massachusetts |
| 28 | Norma Lawrence | 6 | Daughter | — | Massachusetts |
| 29 | Irene Lawrence | 5 | Daughter | — | Massachusetts |
| 30 | James Kelley | 40 | Head | Laborer | Massachusetts |
| 31 | Gertrude Kelley | 30 | Sister | — | Massachusetts |
| 32 | Joseph Blair | 22 | Head | Chauffeur | Massachusetts |
| 33 | Joyce Blair | 20 | Wife | — | Massachusetts |
| 34 | Roberta Blair | 1 | Daughter | — | Massachusetts |
| 35 | Joseph Blair | 0 | Son | — | Massachusetts |
| 36 | Mildred Gornock | 40 | In-law | Sewer | Massachusetts |
| 37 | Ruth Gerrick | 36 | Head | — | Massachusetts |
| 38 | Frances Gerrick | 10 | Daughter | — | Massachusetts |
| 39 | Marion Gerrick | 8 | Daughter | — | Massachusetts |
| 40 | Gerald Gerrick | 1 | Son | — | Massachusetts |
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)