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Florence Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Florence Clark across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Clara & William — first a daughter (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Clark |
| Given Name | Florence R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Assistant Registrar |
| Industry | Secretarial School |
| Class of Worker | PW |
| Income (1939) | 2000 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Assistant Registrar |
| Township / Ward | Medford 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Florence | Age | Birth yr |
|---|---|---|---|---|
| Florence Clark | Daughter | — | 24 | ~1916 |
| Laura Clark | Daughter | — | 17 | ~1923 |
| William Clark | Head | — | 58 | ~1882 |
| Inez Clark | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 4
Middlesex, Massachusetts · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Florence D. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 14
Middlesex, Massachusetts · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Florence D. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada-English |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 24
Middlesex-County, Massachusetts · implied b. ~1916 — 4 household members
| Surname | Clark |
| Given Name | Florence R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Occupation | Assistant Registrar |
| Industry | Secretarial School |
| Class of Worker | PW |
| Income (1939) | 2000 |
| Highest Grade | No 2 |
| 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 Florence Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Clara Clark (~0.92 confidence) and father William Clark (~0.92 confidence) and father Herbert Clark (~0.92 confidence) and mother Inez Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Clara Clark
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
William Clark
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Herbert Clark
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Inez Clark
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Florence Clark
Daughter · 1940 · age 24 · b. ~1916 · Massachusetts
★ You are viewing this record
Sibling
Laura Clark
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-t0627-01612-00708)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John J Linnane | 78 | Head | Laborer | Eire |
| 2 | Mary Linnane | 34 | Daughter | Lawyer | Massachusetts |
| 3 | Robert A Foster | 65 | Head | Gardner | Ireland |
| 4 | Mary H Foster | 68 | Wife | — | Northern Ireland |
| 5 | Violet F Foster | 33 | Daughter | Beautician | Massachusetts |
| 6 | Eli Maynard | 42 | Head | Electrician | Massachusetts |
| 7 | Irene X Maynard | 35 | Wife | — | France |
| 8 | Georgette Cole | 16 | Daughter | — | Massachusetts |
| 9 | Mary Mc Gillen | 67 | Lodger | — | Massachusetts |
| 10 | Mary Johnson | 68 | Lodger | — | Massachusetts |
| 11 | Arthur J Howard | 46 | Lodger | Musician | Massachusetts |
| 12 | Herbert A Batchelder | 53 | Head | Fireman | Maine |
| 13 | Gertrude A Batchelder | 56 | Wife | — | Massachusetts |
| 14 | John J Brigandi | 30 | Head | Telephone Operator | Massachusetts |
| 15 | Rose Brigandi | 29 | Wife | — | Albania |
| 16 | Gaetana Brigandi | 44 | Mother | — | Italy |
| 17 | Michael De Cisce | 46 | Head | — | Italy |
| 18 | Vincenzia De Cisce | 25 | Daughter | Tailoress | Italy |
| 19 | Eva De Cisce | 20 | Daughter | Tailoress | Italy |
| 20 | Angela De Cisce | 11 | Daughter | — | Italy |
| 21 | A. Richard Duffy | 33 | Head | Statistician | Maine |
| 22 | Helen G Duffy | 30 | Wife | — | Massachusetts |
| 23 | A. Richard Duffy | 3 | Son | — | Massachusetts |
| 24 | Patricia Duffy | 1 | Daughter | — | Massachusetts |
| 25 | John H Quilty | 46 | Head | Machinist | Massachusetts |
| 26 | Catherine A Quilty | 44 | Wife | — | Massachusetts |
| 27 | John Quilty | 4 | Son | — | Massachusetts |
| 28 | Robert M Spinney | 55 | Head | Treasurer Credit Union | Massachusetts |
| 29 | Jessie Spinney | 59 | Wife | — | Massachusetts |
| 30 | Alice L Spinney | 30 | Daughter | — | Massachusetts |
| 31 | Carleton Spinney | 24 | Son | New Worker | Massachusetts |
| 32 | Ralph F Willett | 27 | Son-in-law | Machinist | Pennsylvania |
| 33 | Jessie E Willett | 28 | Daughter | — | Massachusetts |
| 34 | William J Clark | 58 | Head | Compositor | New York |
| 35 | Inez E Clark | 55 | Wife | — | Canada-English |
| 36 | Laura E Clark | 17 | Daughter | — | Massachusetts |
| 37 | Florence R Clark THIS PERSON | 24 | Daughter | Assistant Registrar | Massachusetts |
| 38 | Carroll M Brown | 31 | Head | Salesman | Maine |
| 39 | Sarah M Brown | 33 | Wife | — | Massachusetts |
| 40 | Carroll M Brown | 1 | Son | — | Massachusetts |
Pedigree Summary
Florence + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)