MF
Mary Ford — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Ford across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Ford |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Film Keeper |
| Industry | Motion Pictures |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1520 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Film Keeper |
| Township / Ward | Boston City |
| Est. Birth Year | ~1912 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Ford | Daughter | — | 28 | ~1912 |
| Ruth Ford | Daughter | — | 26 | ~1914 |
| Katherine Ford | Head | — | 54 | ~1886 |
| Herbert Ford | Son | — | 35 | ~1905 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 18
Suffolk, Massachusetts · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ford |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada English |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 28
Suffolk-County, Massachusetts · implied b. ~1912 — 4 household members
| Surname | Ford |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | Film Keeper |
| Industry | Motion Pictures |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1520 |
| Highest Grade | H 4 |
| 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 Mary Ford across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Ford (~0.92 confidence) and father John Ford (~0.92 confidence) and mother Sarah Ford (~0.92 confidence) and mother Sarah Ford (~0.92 confidence) and mother Katherine Ford (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Ford
b. ~1872
Source father
● Household
· direct · ~0.92
Father
John Ford
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Sarah Ford
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Sarah Ford
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Katherine Ford
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Ford
Daughter · 1940 · age 28 · b. ~1912 · Massachusetts
★ You are viewing this record
Sibling
Herbert Ford
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Ford
Sibling · 1940 · age 26
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01669-00421)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John M Macmasters | 55 | Head | — | French Canada |
| 2 | Donald S Macmasters | 24 | Son | Laborer | Massachusetts |
| 3 | Thelma D Macmasters | 20 | Daughter | Packer | Massachusetts |
| 4 | Bruce C Macmasters | 15 | Son | — | Massachusetts |
| 5 | Walter W Walsh | 33 | Son-in-law | Stationary Engineer | Massachusetts |
| 6 | Verna M Walsh | 22 | Daughter | — | Massachusetts |
| 7 | Russell E Walsh | 2 | Grandson | — | Massachusetts |
| 8 | Dominic J Boyd | 36 | Head | Foreman | Irish Free State |
| 9 | Mary K Boyd | 31 | Wife | — | Irish Free State |
| 10 | Mary J Boyd | 3 | Daughter | — | Massachusetts |
| 11 | Edward J Boyd | 2 | Son | — | Massachusetts |
| 12 | Patrick J Boyd | 30 | Brother | New Worker | Irish Free State |
| 13 | Arthur D Vitsalis | 43 | Head | Proprietor | Greece |
| 14 | Pauline A Vitsalis | 36 | Wife | — | Greece |
| 15 | Helen A Vitsalis | 16 | Daughter | — | Massachusetts |
| 16 | Evelyn A Vitsalis | 15 | Daughter | — | Massachusetts |
| 17 | Charles A Vitsalis | 12 | Son | — | Massachusetts |
| 18 | Peter A Vitsalis | 9 | Son | — | Massachusetts |
| 19 | Eugene A Vitsalis | 5 | Son | — | Greece |
| 20 | James Boggan | 63 | Head | — | Irish Free State |
| 21 | Geraldine M Boggan | 39 | Daughter | File Clerk | New York |
| 22 | Delores Boggan | 34 | Daughter | Bookbinder | Pennsylvania |
| 23 | Walter W Boggan | 13 | Nephew | — | Massachusetts |
| 24 | Katherine C Ford | 54 | Head | — | Irish Free State |
| 25 | Herbert E Ford | 35 | Son | Electrician | Massachusetts |
| 26 | Mary A Ford THIS PERSON | 28 | Daughter | Film Keeper | Massachusetts |
| 27 | Ruth D Ford | 26 | Daughter | Teacher | Massachusetts |
| 28 | Robert S Mcdebah | 36 | Head | Deli-Man | Massachusetts |
| 29 | Margaret M Mcdebah | 35 | Wife | — | Scotland |
| 30 | Sarah M Mcdebah | 12 | Daughter | — | Massachusetts |
| 31 | Jean Fulton | 33 | Mother-in-law | — | Scotland |
| 32 | Sarah Fulton | 23 | Sister-in-law | New Worker | Scotland |
| 33 | Charles B Butler | 50 | Head | Janitor | Georgia |
| 34 | Eliza H Butler | 53 | Wife | — | Georgia |
| 35 | John J Water | 33 | Head | Yard Foreman | Massachusetts |
| 36 | Jane M Water | 29 | Wife | — | Connecticut |
| 37 | Audrey J Water | 4 | Daughter | — | Massachusetts |
| 38 | Delores M Water | 3 | Daughter | — | Massachusetts |
| 39 | Mathias Welsh | 75 | Head | — | English Canada |
| 40 | Theodora M Welsh | 67 | Wife | — | Connecticut |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 5 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)