MR
Mary Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Macomb-County, Michigan
Our Model Tree links this Mary Ritter across the 1930 and 1940 US Censuses in Macomb-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macomb-County, Michigan |
| Surname | Ritter |
| Given Name | Mary Lucille |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Mt. Clemens City |
| 1935 Residence (County) | Macomb |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Mt Clemens City |
| Est. Birth Year | ~1924 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patricia Ritter | Daughter | — | 12 | ~1928 |
| John Ritter | Son | — | 17 | ~1923 |
| Walter Finley | Other | — | 20 | ~1920 |
| Mary Ritter | Daughter | — | 16 | ~1924 |
| John Ritter | Head | — | 52 | ~1888 |
| Julia Ritter | Spouse | — | 54 | ~1886 |
| Bertha Ritter | Daughter | — | 22 | ~1918 |
| Edward Quinn | Other | — | 17 | ~1923 |
Census Appearances
1930
Macomb, Michigan
Daughter, age 6
Macomb, Michigan · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ritter |
| Given Name | Mae |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Macomb-County, Michigan
Daughter, age 16
Macomb-County, Michigan · implied b. ~1924 — 8 household members
| Surname | Ritter |
| Given Name | Mary Lucille |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Mt. Clemens City |
| 1935 Residence (County) | Macomb |
| 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 Ritter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Ritter
Daughter · 1940 · age 16 · b. ~1924 · Michigan
★ You are viewing this record
Sibling
John Ritter
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Ritter
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertha Ritter
Sibling · 1940 · age 22
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 — Macomb-County, Michigan
Open full size
1940 US Federal Census — Macomb-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01783-00686)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ralph L. Nunneley | 29 | Head | Salesman | Michigan |
| 42 | Laura A. Nunneley | 28 | Wife | — | New Jersey |
| 43 | Patricia B. Nunneley | 6 | Daughter | — | Michigan |
| 44 | Katherine Nunneley | 1 | Daughter | — | Michigan |
| 45 | Charles E. Wild | 42 | Head | Bookkeeper | Indiana |
| 46 | Helene K. Wild | 41 | Wife | Cook | Michigan |
| 47 | Helen L. Wild | 15 | Daughter | — | Indiana |
| 48 | John C. Ritter | 52 | Head | Butcher | Michigan |
| 49 | Julia Ritter | 54 | Wife | — | Michigan |
| 50 | Bertha E. Ritter | 22 | Daughter | Bookkeeper | Michigan |
| 51 | John A. Ritter | 17 | Son | Pin Setter | Michigan |
| 52 | Mary Lucille Ritter THIS PERSON | 16 | Daughter | — | Michigan |
| 53 | Patricia M. Ritter | 12 | Daughter | — | Michigan |
| 54 | Walter J. Finley | 20 | Lodger | Cook | Michigan |
| 55 | Edward Quinn | 17 | Lodger | Elevator Boy | Michigan |
| 56 | Elizabeth T. Peltier | 51 | Head | Housekeeper | Michigan |
| 57 | Norman J. Peltier | 28 | Son | Shoe Repair | Michigan |
| 58 | Barney H. Peltier | 23 | Son | Waiter | Michigan |
| 59 | Pearl Peltier | 22 | Daughter-in-law | — | Michigan |
| 60 | Barney H. Peltier | 1 | Grand-son | — | Michigan |
| 61 | Ellie Richen | 32 | Lodger | Waitress | Michigan |
| 62 | Katherine M. Richen | 13 | Lodger | — | Michigan |
| 63 | Marion E. Wiegand | 31 | Lodger | Nurse R.N. | Michigan |
| 64 | Alphonse R. Tremblay | 30 | Head | Patrolman | Michigan |
| 65 | Hattie M. Tremblay | 31 | Wife | Fur Repair | Michigan |
| 66 | Patricia A. Tremblay | 7 | Daughter | — | Michigan |
| 67 | Arthur T. Enos | 37 | Head | Maintenance | Michigan |
| 68 | Mildred E. Enos | 38 | Wife | — | Michigan |
| 69 | Betty Jane Widrig | 18 | Step Daughter | Bookkeeper | Michigan |
| 70 | William Mcwilliams | 77 | Head | Bartender | Pennsylvania |
| 71 | Margaret F. Mcwilliams | 43 | Wife | Bookkeeper | Michigan |
| 72 | Robert O. Mcwilliams | 18 | Son | — | Michigan |
| 73 | Eylia Line Mcwilliams | None | wrong information from neighbor | — | — |
| 74 | Vincent J. Eschenburg | 30 | Head | Fireman | Michigan |
| 75 | Helen F. Eschenburg | 28 | Wife | — | Canada Eng |
| 76 | Melvin V. Eschenburg | 7 | Son | — | Michigan |
| 77 | Donald F. Eschenburg | 3 | Son | — | Michigan |
| 78 | Joseph M. Killewald | 60 | Head | Salesman | Michigan |
| 79 | Sylvia E. Killewald | 55 | Wife | — | Michigan |
| 80 | Frances J. Killewald | 24 | Son | Shipping | Michigan |
Related Census Records
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)