MC
Mary Conner — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washtenaw-County, Michigan
Our Model Tree links this Mary Conner across the 1930 and 1940 US Censuses in Washtenaw-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washtenaw-County, Michigan |
| Surname | Conner |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Washtenaw |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Pittsfield Twp |
| Est. Birth Year | ~1925 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Conner | Son | — | 27 | ~1913 |
| Fred Conner | Son | — | 21 | ~1919 |
| John Conner | Head | — | 60 | ~1880 |
| Mary Conner | Daughter | — | 15 | ~1925 |
| Rosie Conner | Spouse | — | 56 | ~1884 |
| Francis Conner | Son | — | 19 | ~1921 |
Census Appearances
1930
Washtenaw, Michigan
Daughter, age 5
Washtenaw, Michigan · implied b. ~1925
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Conner |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Washtenaw-County, Michigan
Daughter, age 15
Washtenaw-County, Michigan · implied b. ~1925 — 6 household members
| Surname | Conner |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Washtenaw |
| Hours Worked | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Michigan |
| 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 Conner across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Conner
Daughter · 1940 · age 15 · b. ~1925 · Michigan
★ You are viewing this record
Sibling
John Conner
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Conner
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Conner
Sibling · 1940 · age 21
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 — Washtenaw-County, Michigan
Open full size
1940 US Federal Census — Washtenaw-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01824-00189)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mabel E. Mcwilliams | 42 | Wife | — | Illinois |
| 2 | James S. Mcwilliams | 23 | Son | — | Michigan |
| 3 | John Conner | 60 | Head | Laborer | Ohio |
| 4 | Rosie Conner | 56 | Wife | — | Ohio |
| 5 | John Jr. Conner | 27 | Son | Laborer (Blst) | Ohio |
| 6 | Fred Conner | 21 | Son | Laborer | Michigan |
| 7 | Francis Conner | 19 | Son | — | Michigan |
| 8 | Mary E. Conner THIS PERSON | 15 | Daughter | — | Michigan |
| 9 | John Buchanan | 36 | Head | Mechanical Eng | Illinois |
| 10 | Ann M. Buchanan | 32 | Wife | — | Wisconsin |
| 11 | Jack P. Buchanan | 1 | Son | — | Michigan |
| 12 | Clement Skrypczak | 30 | Head | Cement Worker | Michigan |
| 13 | Margaret E. Skrypczak | 31 | Wife | — | Michigan |
| 14 | Joseph E. Skrypczak | 5 | Son | — | Michigan |
| 15 | Ronald J. Skrypczak | 2 | Son | — | Michigan |
| 16 | Mark White | 36 | Head | Press Operator | Michigan |
| 17 | Marie White | 32 | Wife | — | Michigan |
| 18 | Frank M. White | 73 | Head | — | Michigan |
| 19 | Carrie J. White | 67 | Wife | — | Michigan |
| 20 | Henry C. Yone | 32 | Head | Cut Off Sawyer | Kentucky |
| 21 | Wellmana B. Yone | 31 | Wife | — | Michigan |
| 22 | Percy Mansfeaker | 31 | Head | Laborer | Pennsylvania |
| 23 | Hattie B. Mansfeaker | 22 | Wife | — | Michigan |
| 24 | Robert B. Mansfeaker | 3 | Son | — | Michigan |
| 25 | David W. Mansfeaker | 1 | Son | — | Michigan |
| 26 | Thomas O. Knight | 80 | Head | — | England |
| 27 | John B. Ashley | 55 | Head | Laborer | Michigan |
| 28 | Margaret E. Ashley | 51 | Wife | — | Michigan |
| 29 | James E. Fink | 25 | Head | Assembly Line | Michigan |
| 30 | Eleanor E. Fink | 24 | Wife | — | Michigan |
| 31 | James J. Fink | 4 | Son | — | Michigan |
| 32 | William E. Fink | 1 | Son | — | Michigan |
| 33 | William | 47 | Father | Moulder | Kentucky |
| 34 | Harry Crane | 60 | Head | Farmer | Michigan |
| 35 | Daisy Crane | 48 | Wife | — | Ohio |
| 36 | Catherine Romero | 79 | Mother-in-law | — | Ohio |
| 37 | Myron Fowler | 20 | Hired hand | Laborer | Michigan |
| 38 | Margaret Bait | 20 | Maid | Housework | Germany |
| 39 | Elmer Lowden | 54 | Head | Carpenter | South Dakota |
| 40 | Jean D. Lowden | 46 | Wife | — | Canada |
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)