MF
Mary Farley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lapeer-County, Michigan
Our Model Tree links this Mary Farley across the 1930 and 1940 US Censuses in Lapeer-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lapeer-County, Michigan |
| Surname | Farley |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Almont Twp. |
| 1935 Residence (County) | Lapeer |
| Additional Details | |
| Occupation | Nurse |
| Industry | Training School |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Nurse |
| Township / Ward | Almont Twp |
| Est. Birth Year | ~1921 |
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 |
|---|---|---|---|---|
| Charles Farley | Son | — | 18 | ~1922 |
| Mary Farley | Daughter | — | 19 | ~1921 |
| James Farley | Head | — | 50 | ~1890 |
| Lucielle Farley | Daughter | — | 14 | ~1926 |
| Don Farley | Son | — | 20 | ~1920 |
| Helen Farley | Spouse | — | 40 | ~1900 |
| James Farley | Son | — | 9 | ~1931 |
Census Appearances
1930
Lapeer, Michigan
Daughter, age 9
Lapeer, Michigan · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Farley |
| Given Name | Mary L |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Idaho |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Lapeer-County, Michigan
Daughter, age 19
Lapeer-County, Michigan · implied b. ~1921 — 7 household members
| Surname | Farley |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Almont Twp. |
| 1935 Residence (County) | Lapeer |
| Occupation | Nurse |
| Industry | Training School |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Farley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Farley
Daughter · 1940 · age 19 · b. ~1921 · Michigan
★ You are viewing this record
Sibling
Lucielle Farley
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Farley
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Farley
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Don Farley
Sibling · 1940 · age 20
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 — Lapeer-County, Michigan
Open full size
1940 US Federal Census — Lapeer-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01777-00345)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marshall Jr. Gutierrez | 6 | Son | — | Michigan |
| 2 | Nidela Gutierrez | 4 | Daughter | — | Michigan |
| 3 | Lee E. Muir | 39 | Head | Farmer | Michigan |
| 4 | Harriet Muir | 40 | Wife | — | Michigan |
| 5 | Margaret Muir | 12 | Daughter | — | Michigan |
| 6 | Mary Jane Muir | 11 | Daughter | — | Michigan |
| 7 | Amelia Muir | 10 | Daughter | — | Michigan |
| 8 | Beulah Muir | 9 | Daughter | — | Michigan |
| 9 | Linford Muir | 7 | Daughter | — | Michigan |
| 10 | Richard Muir | 6 | Son | — | Michigan |
| 11 | Maxwell Muir | 4 | Son | — | Michigan |
| 12 | George Muir | 4 | Son | — | Michigan |
| 13 | James Muir | 1 | Son | — | Michigan |
| 14 | Bert Hoffman | 38 | Head | Farmer | Michigan |
| 15 | Marion Hoffman | 38 | Wife | — | Michigan |
| 16 | Elizabeth Riker | 71 | Mother-in-law | — | Pennsylvania |
| 17 | Bill Hutchinson | 42 | Hired Hand | Hired Hand | Michigan |
| 18 | Frances Beal | 26 | Hired Hand | — | Michigan |
| 19 | Clyde Sanford | 26 | Head | Hired Hand | Michigan |
| 20 | Marie Sanford | 23 | Wife | — | Michigan |
| 21 | Helen Sanford | 1 | Daughter | — | Michigan |
| 22 | James R. Farley | 50 | Head | Farmer | Michigan |
| 23 | Helen Farley | 40 | Wife | — | Idaho |
| 24 | Don Farley | 20 | Son | Farm Hand | Michigan |
| 25 | Mary Lou Farley THIS PERSON | 19 | Daughter | Nurse | Michigan |
| 26 | Charles Farley | 18 | Son | — | Michigan |
| 27 | Lucielle Farley | 14 | Daughter | — | Idaho |
| 28 | James A. Farley | 9 | Son | — | Michigan |
| 29 | Clayton Savage | 53 | Head | Farmer | Michigan |
| 30 | Hazel Savage | 44 | Wife | — | Wisconsin |
| 31 | Ella Mae Savage | 18 | Daughter | — | Michigan |
| 32 | Ruth Savage | 14 | Daughter | — | Michigan |
| 33 | Robert Savage | 12 | Son | — | Michigan |
| 34 | Jessy Savage | 9 | Son | — | Michigan |
| 35 | Clarence Bush | 37 | Head | Farmer | Texas |
| 36 | Alatha Bush | 34 | Wife | — | Arkansas |
| 37 | T. R. Bush | 14 | Son | — | Texas |
| 38 | Nilda Bush | 9 | Daughter | — | Arkansas |
| 39 | Milton Evans | 60 | Hired Hand | Hired Hand | Arkansas |
| 40 | Bert Harrington | 60 | Head | Farmer | Michigan |
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)