MC
Mary Cunningham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Cunningham across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 2-person household.
Age 52
b. ~1888
Female
Head
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Cunningham |
| Given Name | Mary M. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Ipswich Town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Ipswich Town |
| Est. Birth Year | ~1888 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cunningham | Head | — | 52 | ~1888 |
| Roger Cunningham | Son | — | 25 | ~1915 |
Census Appearances
1920
Essex, Massachusetts
Spouse, age 32
Essex, Massachusetts · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Spouse, age 42
Essex, Massachusetts · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 17 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Head, age 52
Essex-County, Massachusetts · implied b. ~1888 — 2 household members
| Surname | Cunningham |
| Given Name | Mary M. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Ipswich Town |
| 1935 Residence (County) | Essex |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 Cunningham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cunningham
Head · 1940 · age 52 · b. ~1888 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01582-00019)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary M. Cunningham THIS PERSON | 52 | Head | — | Massachusetts |
| 42 | Roger F. Cunningham | 25 | Son | Accountant | Massachusetts |
| 43 | Joseph P. Gallant | 25 | Head | Clammer | Massachusetts |
| 44 | Bessie B. Dunham | 73 | Head | — | English Canada |
| 45 | Ruth S. Dunham | 35 | Daughter | Clerk | Massachusetts |
| 47 | Justin E. Hull | 54 | Head | Boatman | Massachusetts |
| 48 | Annie K. Hull | 57 | Wife | — | Massachusetts |
| 49 | Robert M. Hull | 23 | Son | Laborer | Massachusetts |
| 50 | Russell R. Smith | 24 | Head | Dock Man | Massachusetts |
| 51 | Phyllis E. Smith | 26 | Wife | — | Massachusetts |
| 52 | Russell E. Jr. Smith | 2 | Son | — | Massachusetts |
| 53 | Alonzo F. Brown | 63 | Head | Clammer | Canada English |
| 54 | Helen F. Brown | 57 | Wife | — | Massachusetts |
| 55 | Edgar J. Holland | 68 | Head | Owner | Canada English |
| 56 | Margaret A. Holland | 67 | Wife | — | Canada English |
| 57 | Maynard D. Cook | 28 | Head | Clammer | Massachusetts |
| 58 | Myrtle A. Cook | 20 | Wife | — | Massachusetts |
| 59 | Francis J. Cook | 12 | Daughter | — | Massachusetts |
| 60 | Caroline L. Cook | 61 | Mother | — | Massachusetts |
| 61 | Frank E. Shelley | 43 | Head | Chauffeur | Vermont |
| 62 | Viola M. Shelley | 35 | Wife | — | Massachusetts |
| 63 | Mildred K. Shelley | 22 | Daughter | Stamping | Massachusetts |
| 64 | Eleanor Shelley | 20 | Daughter | Clerk | Massachusetts |
| 65 | Doris A. Shelley | 17 | Daughter | — | Massachusetts |
| 66 | Frank E. Jr. Shelley | 16 | Son | — | Massachusetts |
| 67 | Carrie D. Ross | 72 | Head | — | Massachusetts |
| 68 | Walter P. Ross | 57 | Brother | Crossing Tender | Massachusetts |
| 69 | Laurence C. Miller | 38 | Head | Clammer | Massachusetts |
| 70 | Lillian F. Miller | 35 | Wife | — | Massachusetts |
| 71 | Constance Miller | 10 | Daughter | — | Massachusetts |
| 72 | Laurence Jr. Miller | 8 | Son | — | Massachusetts |
| 73 | Charles Barton | 60 | Boarder | — | Massachusetts |
| 74 | Cora A. Jewett | 77 | Head | — | Massachusetts |
| 75 | Marjorie H. Gillis | 36 | Nurse | Nurse | Massachusetts |
| 76 | Ida E. Harrington | 60 | Head | Manager | Massachusetts |
| 77 | Dexter Harrington | 22 | Son | Sheet Metal Worker | Massachusetts |
| 78 | Harry M. Dolan | 49 | Head | Clerk | Massachusetts |
| 79 | Ruth T. Dolan | 46 | Wife | — | Massachusetts |
| 80 | Ruth M. Dolan | 19 | Daughter | — | 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)