MC
Mary Cramer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Cramer across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Cramer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore |
| Est. Birth Year | ~1928 |
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 |
|---|---|---|---|---|
| Mary Cramer | Daughter | — | 12 | ~1928 |
| Clara Cramer | Daughter | — | 18 | ~1922 |
| David Cramer | Head | — | 48 | ~1892 |
| Anna Pauley | Other | — | 30 | ~1910 |
| David Cramer | Son | — | 1 | ~1939 |
| Clara Cramer | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 1
Baltimore, Maryland · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kraemer |
| Given Name | Marguerite E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 12
Baltimore-City-County, Maryland · implied b. ~1928 — 6 household members
| Surname | Cramer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Cramer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cramer
Daughter · 1940 · age 12 · b. ~1928 · Maryland
★ You are viewing this record
Sibling
Clara Cramer
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Cramer
Sibling · 1940 · age 1
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01521-00086)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alfred E Hill | 78 | Head | — | Maryland |
| 42 | Roberta L Hill | 53 | Daughter | — | Maryland |
| 43 | David Cramer | 48 | Head | Lineman | Maryland |
| 44 | Clara Cramer | 40 | Wife | — | Maryland |
| 45 | Clara Cramer | 18 | Daughter | — | Maryland |
| 46 | Mary Cramer THIS PERSON | 12 | Daughter | — | Maryland |
| 47 | David Cramer | 1 | Son | — | Maryland |
| 48 | Anna Pauley | 30 | Sister-in-law | Salesgirl | Maryland |
| 49 | Mary Fisher | 71 | Head | — | Maryland |
| 50 | John A Hooker | 40 | Head | Dairyman | Maryland |
| 51 | Edna M Hooker | 36 | Wife | — | Maryland |
| 52 | Margaret Hooker | 7 | Daughter | — | Maryland |
| 53 | Mary C Hooker | 2 | Daughter | — | Maryland |
| 54 | Howard G Charlton | 60 | Head | Utility Man | Maryland |
| 55 | Anna Charlton | 57 | Wife | — | Maryland |
| 56 | John J Kavanaugh | 65 | Head | — | Pennsylvania |
| 57 | Mary A Kavanaugh | 58 | Wife | — | Pennsylvania |
| 58 | John E Kavanaugh | 28 | Son | Pump Operator | Pennsylvania |
| 59 | James Kavanaugh | 15 | Son | — | Maryland |
| 60 | Annie O'Donovan | 71 | Sister-in-law | — | Pennsylvania |
| 61 | Wilbur Metzger | 35 | Head | — | Maryland |
| 62 | Bertha Metzger | 33 | Wife | — | Maryland |
| 63 | Harry Stansbury | 14 | Son | — | Maryland |
| 64 | Frank Brooks | 55 | Father-in-law | Plumber | Maryland |
| 65 | Annie Brooks | 53 | Mother-in-law | — | Maryland |
| 66 | Lawrence Brooks | 19 | Brother-in-law | Pin Boy | Maryland |
| 67 | Kenneth Kline | 31 | Head | Laborer | Maryland |
| 68 | Velma Kline | 28 | Wife | — | Maryland |
| 69 | Kenneth Jr Kline | 7 | Son | — | Maryland |
| 70 | James Kline | 6 | Son | — | Maryland |
| 71 | David Kline | 5 | Son | — | Maryland |
| 72 | Audrea A Kline | 1 | Daughter | — | Maryland |
| 73 | Bennett Spurrier | 36 | Head | Laborer | Maryland |
| 74 | Margaret Spurrier | 32 | Wife | — | Maryland |
| 75 | Michael Demico | 32 | Head | Welder | Washington D.C. |
| 76 | Pauline Demico | 31 | Wife | — | Maryland |
| 77 | Ronald Demico | 10 | Son | — | Maryland |
| 78 | Eleanor Demico | 4 | Daughter | — | Maryland |
| 79 | Roland Demico | 28 | Son | Clerk | Maryland |
| 80 | John W Fulton | 30 | Head | Photo Engraver | Maryland |
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)