MK
Mary Kramer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Mary Kramer across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1867), then head of a 3-person household.
Age 73
b. ~1867
Female
Spouse
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Kramer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (city) |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1867 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Henry Kramer | Head | — | 74 | ~1866 |
| Irene Kramer | Daughter | — | 48 | ~1892 |
| Mary Kramer | Spouse | — | 73 | ~1867 |
Census Appearances
1920
St Louis, …
Spouse, age 53
St Louis, Missouri · implied b. ~1867 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kromer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Spouse, age 63
St Louis, Missouri · implied b. ~1867 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kramer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 22 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Spouse, age 73
St.-Louis-City-County, Missouri · implied b. ~1867 — 3 household members
| Surname | Kramer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (city) |
| 1935 Residence (County) | St. Louis City |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Kramer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kramer
Spouse · 1940 · age 73 · b. ~1867 · Missouri
★ 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 — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02181-00181)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harvey J. Pearce | 51 | Head | Architect | Missouri |
| 42 | Nellie Pearce | 52 | Wife | — | Missouri |
| 43 | Lydia Leezer | 56 | Mother-in-law | Inspector | Missouri |
| 44 | Bernard Schultz | 41 | Head | Elevator Constructor | Missouri |
| 45 | Manila Schultz | 41 | Wife | — | Missouri |
| 46 | Robert Schultz | 15 | Son | — | Missouri |
| 47 | Gloria Schultz | 12 | Daughter | — | Missouri |
| 48 | George Moorman | 31 | Brother-in-law | Car Cleaning | Missouri |
| 49 | Robt. Moorman | 38 | Head | Time-Keeper | Missouri |
| 50 | Jewel Moorman | 39 | Wife | — | Missouri |
| 51 | Clarence Smith | 36 | Head | Route Foreman | Missouri |
| 52 | Helen Smith | 31 | Wife | — | Missouri |
| 53 | Kenneth Smith | 6 | Son | — | Missouri |
| 54 | Wesley Smith | 2 | Son | — | Missouri |
| 55 | Rebecca Missey | 59 | Head | — | Missouri |
| 56 | Ernest Cain | 34 | Son | Laborer | Missouri |
| 57 | Raymond Cain | 22 | Son | Stock Clerk | Missouri |
| 58 | Robert Missey | 15 | Son | Farm Laborer | Missouri |
| 59 | George Unland | 36 | Head | Laborer | Missouri |
| 60 | Lula Unland | 38 | Wife | — | Missouri |
| 61 | Harry Dovier | 44 | Head | Chauffeur | Pennsylvania |
| 62 | Clara Dovier | 42 | Wife | — | Missouri |
| 63 | Leo Kraus | 41 | Head | Salesman | Missouri |
| 64 | Mildred Kraus | 33 | Wife | Order Clerk | Illinois |
| 65 | Fred Schriever | 43 | Head | Truck Driver | Missouri |
| 66 | Bertha Schriever | 44 | Sister | — | Missouri |
| 67 | Richard Schriever | 18 | Nephew | Order Clerk | Missouri |
| 68 | Helen Schriever | 32 | Sister | Waitress | Missouri |
| 69 | Henry J. Kramer | 74 | Head | Car Cleaner | Holland |
| 70 | Mary Kramer THIS PERSON | 73 | Wife | — | Missouri |
| 71 | Irene C. Kramer | 48 | Daughter | Hairdresser | Missouri |
| 72 | Stephen Buttmoeller | 66 | Head | Hardwood Finisher | Missouri |
| 73 | Katherine M. Buttmoeller | 59 | Wife | — | Missouri |
| 74 | Katherine C. Buttmoeller | 21 | Daughter | Factory Worker | Missouri |
| 75 | Agnes J. Buttmoeller | 18 | Daughter | Seamstress | Missouri |
| 76 | Rudolph Ladi | 29 | Head | Printing Pressman | Missouri |
| 77 | Esther M. Ladi | 29 | Wife | — | Missouri |
| 78 | Rudolph C. Ladi | 4 | Son | — | Missouri |
| 79 | Wm. Hoene | 43 | Head | Letter Carrier | Missouri |
| 80 | Leona Hoene | 33 | Wife | — | Missouri |
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)