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Martha Lee — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Martha Lee across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 5-person household.
Age 57
b. ~1883
Female
Spouse
Born: New Hampshire
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Lee |
| Given Name | Martha M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Medford City |
| Est. Birth Year | ~1883 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Mildred Ahlstrom | Daughter | — | 35 | ~1905 |
| Nils Ahlstrom | Other | — | 36 | ~1904 |
| George Lee | Head | — | 67 | ~1873 |
| Martha Lee | Spouse | — | 57 | ~1883 |
| Nils Ahlstrom | Son | — | 7 | ~1933 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 39
Middlesex, Massachusetts · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Martha M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Middlesex, Massachusetts
Spouse, age 49
Middlesex, Massachusetts · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Martha M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 20 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Middlesex-County, Massachusetts
Spouse, age 57
Middlesex-County, Massachusetts · implied b. ~1883 — 5 household members
| Surname | Lee |
| Given Name | Martha M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Medford City |
| 1935 Residence (County) | Middlesex |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Martha Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Lee
Spouse · 1940 · age 57 · b. ~1883 · Massachusetts
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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-t0627-01611-00043)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward B. Coffin | 52 | Lodger | Mariner | Mass |
| 2 | Manuel J. Marshall | 44 | Head | Compositor | Mass |
| 3 | Rose C. Marshall | 39 | Wife | — | England |
| 4 | Doris Marshall | 18 | Daughter | Stenographer | Mass |
| 5 | Mary Marshall | 10 | Daughter | — | Mass |
| 6 | William J. Armstrong | 55 | Head | Cutter | Mass |
| 7 | Catherine C. Armstrong | 56 | Wife | — | Canada Eng. |
| 8 | Virginia C. Armstrong | 30 | Daughter | Fitter | Mass |
| 9 | Valerie I. Armstrong | 22 | Daughter | Stenographer | Mass |
| 10 | Arthur S. Armstrong | 17 | Son | — | Mass |
| 11 | Patricia D. Armstrong | 14 | Daughter | — | Mass |
| 12 | Dante Garbarino | 31 | Head | Clerk | Mass |
| 13 | Elizabeth Garbarino | 27 | Wife | — | Mass |
| 14 | Paul Garbarino | 2 | Son | — | Mass |
| 15 | Charles Brum | 57 | Head | Plumber | Mass |
| 16 | Josephine Brum | 51 | Wife | — | Irish Free State |
| 17 | John E. Mcnulty | 66 | Head | Sales Mgr. | Canada Eng. |
| 18 | Georgetta Mcnulty | 61 | Wife | — | Mass |
| 19 | Mildred A. Mcnulty | 27 | Daughter | Photo Finisher | Mass |
| 20 | John E. Mcnulty | 26 | Son | Clerk | Mass |
| 21 | Hortense Mcmichael | 71 | Sister | — | Mass |
| 22 | Arthur Brum | 57 | Brother | Druggist | Mass |
| 23 | Of End | None | BLOCK | — | — |
| 24 | Julie E. Mason | 60 | Head | — | Mass |
| 25 | Pearley E. Mason | 66 | Husband | Park Police | Maine |
| 26 | Agnes L. Monahan | 51 | Sister | — | Mass |
| 27 | James P. Monahan | 59 | Husband | Messenger | Mass |
| 28 | Hannah Mccarthy | 73 | Lodger | — | Irish Free State |
| 29 | Leonard D. Barry | 45 | Head | Pressman | New Hampshire |
| 30 | Catherine A. Barry | 42 | Wife | — | New Hampshire |
| 31 | Margaret M. Barry | 20 | Daughter | New Worker | New Hampshire |
| 32 | Leonard D. Barry | 17 | Son | Delivery Boy | New Hampshire |
| 33 | Paul R. Barry | 8 | Son | — | Mass |
| 34 | Joan C. Barry | 7 | Daughter | — | Mass |
| 35 | Beverly A. Barry | 1 | Daughter | — | Mass |
| 36 | George H. Lee | 67 | Head | Mechanic | New Hampshire |
| 37 | Martha M. Lee THIS PERSON | 57 | Wife | — | New Hampshire |
| 38 | Nils J. Ahlstrom | 36 | Son-in-law | Shipper | Mass |
| 39 | Mildred M. Ahlstrom | 35 | Daughter | Salesgirl | Mass |
| 40 | Nils Jr. Ahlstrom | 7 | Son | — | Mass |
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)