MC
Mary Clifford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-Haven-County, Connecticut
Our Model Tree links this Mary Clifford across the 1930 and 1940 US Censuses in New-Haven-County, Connecticut (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 7-person household.
Age 51
b. ~1889
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Haven-County, Connecticut |
| Surname | Clifford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New Haven City |
| 1935 Residence (County) | New Haven |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | New Haven City |
| Est. Birth Year | ~1889 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Barbara Clifford | Daughter | — | 16 | ~1924 |
| Patrick Clifford | Head | — | 52 | ~1888 |
| John Clifford | Son | — | 15 | ~1925 |
| Katherine Clifford | Daughter | — | 18 | ~1922 |
| Daniel Clifford | Son | — | 6 | ~1934 |
| Mary Clifford | Spouse | — | 51 | ~1889 |
| Patrick Clifford | Son | — | 12 | ~1928 |
Census Appearances
1930
New Haven, …
Spouse, age 40
New Haven, Connecticut · implied b. ~1890 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clifford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1908 |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
New-Haven-County, Connecticut
Spouse, age 51
New-Haven-County, Connecticut · implied b. ~1889 — 7 household members
| Surname | Clifford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New Haven City |
| 1935 Residence (County) | New Haven |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Clifford across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clifford
Spouse · 1940 · age 51 · b. ~1889 · Connecticut
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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 — New-Haven-County, Connecticut
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1940 US Federal Census — New-Haven-County, Connecticut
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00541-00366)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Hosmer | 43 | Daughter | Inspector | Connecticut |
| 2 | Frank Sr. Godwin | 57 | Head | Maintenance | New Jersey |
| 3 | Nellie Godwin | 60 | Wife | — | Connecticut |
| 4 | Frank Jr. Godwin | 23 | Son | Bill Poster | Connecticut |
| 5 | Martha Huth | 63 | Head | Foreman | Germany |
| 6 | Fritz Koffinke | 58 | Head | Adjuster | Germany |
| 7 | Emily Langner | 45 | Niece | Office Clerk | Connecticut |
| 8 | Charles Brown | 70 | Head | Machinist | Connecticut |
| 9 | Anna Brown | 67 | Wife | — | Connecticut |
| 10 | James Davies | 30 | Head | Sales Clerk | Connecticut |
| 11 | Helen Davies | 32 | Wife | — | Connecticut |
| 12 | Judith Davies | 1 | Daughter | — | Connecticut |
| 13 | Walter Digby | 29 | Head | Driver | England |
| 14 | Anne Digby | 23 | Wife | — | Connecticut |
| 15 | Gilbert Digby | 5 | Son | — | Connecticut |
| 16 | William Digby | 2 | Son | — | Connecticut |
| 17 | Patrick J. Clifford | 52 | Head | Policeman | Ireland |
| 18 | Mary Clifford THIS PERSON | 51 | Wife | — | Ireland |
| 19 | Katherine Clifford | 18 | Daughter | Bench Worker | Connecticut |
| 20 | Barbara Clifford | 16 | Daughter | — | Connecticut |
| 21 | John Clifford | 15 | Son | — | Connecticut |
| 22 | Patrick Clifford | 12 | Son | — | Connecticut |
| 23 | Daniel Clifford | 6 | Son | — | Connecticut |
| 24 | John Lynch | 46 | Head | Policeman | Connecticut |
| 25 | Irene Lynch | 46 | Wife | — | Connecticut |
| 26 | John Jr. Lynch | 22 | Son | New Worker | Connecticut |
| 27 | Robert Lynch | 19 | Son | Helper | Connecticut |
| 28 | Joan Lynch | 14 | Daughter | — | Connecticut |
| 29 | William Lynch | 11 | Son | — | Connecticut |
| 30 | Helen Lynch | 9 | Daughter | — | Connecticut |
| 31 | Albert Krahl | 62 | Head | Machinist | Germany |
| 32 | Julia Krahl | 52 | Wife | — | Connecticut |
| 33 | Kenneth Krahl | 12 | Son | — | Connecticut |
| 34 | Albert Jr. Krahl | 23 | Son | Cashier | Connecticut |
| 35 | James Miller | 47 | Head | Butcher | Connecticut |
| 36 | Anna Miller | 46 | Wife | Sales Lady | Connecticut |
| 37 | Raymond Miller | 23 | Son | Wireman | Connecticut |
| 38 | James Jr. Miller | 20 | Son | Coiler | Connecticut |
| 39 | Jean Miller | 18 | Daughter | — | Connecticut |
| 40 | Edward Miller | 17 | Son | — | Connecticut |
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)