MK
Mary Kramer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Wayne, Michigan
Our Model Tree links this Mary Kramer across the 1930 and 1940 US Censuses in Wayne, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 16-person household.
Age 1
b. ~1929
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Wayne, Michigan |
| Surname | Kramer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1929 |
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.
16 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Kramer | Son | — | 3 | ~1927 |
| George Kramer | Son | — | 5 | ~1925 |
| Angeline Kramer | Daughter | — | 22 | ~1908 |
| Edward Kramer | Son | — | 13 | ~1917 |
| Elmer Kramer | Son | — | 26 | ~1904 |
| Ida Kramer | Spouse | — | 52 | ~1878 |
| John Kramer | Son | — | 7 | ~1923 |
| Mary Kramer | Daughter | — | 1 | ~1929 |
| Fred Kramer | Son | — | 21 | ~1909 |
| Margaret Kramer | Daughter | — | 15 | ~1915 |
| August Kramer | Head | — | 55 | ~1875 |
| Ruby Kramer | Daughter | — | 9 | ~1921 |
| Walter Kramer | Son | — | 17 | ~1913 |
| Arthur Kramer | Son | — | 28 | ~1902 |
| Robert Kramer | Son | — | 11 | ~1919 |
| Theodore Kramer | Son | — | 24 | ~1906 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 1
Wayne, Michigan · implied b. ~1929 — 16 household members
| Surname | Kramer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 11
Wayne-County, Michigan · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kroner |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| 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 Kramer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kramer
Daughter · 1930 · age 1 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
Arthur Kramer
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Kramer
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Kramer
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Angeline Kramer
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Kramer
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kramer
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Kramer
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Kramer
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Kramer
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Kramer
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kramer
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Kramer
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Kramer
Sibling · 1930 · age 9
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
1930 US Federal Census — Wayne, Michigan
Open full size
1930 US Federal Census — Wayne, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1053:0033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ella V Williams | 62 | Wife | — | Michigan |
| 2 | Lester Williams | 40 | Son | Manager | Michigan |
| 3 | Lillian Williams | 38 | Daughter | — | Michigan |
| 4 | Mildred Williams | 36 | Daughter | — | Michigan |
| 5 | Ruth Williams | 34 | Daughter | — | Michigan |
| 6 | Margaret Williams | 32 | Daughter | — | Michigan |
| 7 | Frank Pruitt | 50 | Head | Contractor | Ohio |
| 8 | Elizabeth Pruitt | 48 | Wife | — | England |
| 9 | Frank Jr Pruitt | 25 | Son | Contractor | Michigan |
| 10 | Bernadine Pruitt | 22 | Daughter-in-law | — | Michigan |
| 11 | Doris Pruitt | 17 | Daughter | — | Michigan |
| 12 | Donald Pruitt | 15 | Son | Attendant | Ohio |
| 13 | William Pruitt | 12 | Son | Dishwasher | Michigan |
| 14 | Robert Pruitt | 10 | Son | — | Michigan |
| 15 | James Pruitt | 8 | Son | — | Michigan |
| 16 | August Kramer | 55 | Head | Moulder | Germany |
| 17 | Ida Kramer | 52 | Wife | — | Germany |
| 18 | Arthur Kramer | 28 | Son | Machine Operator | Michigan |
| 19 | Elmer Kramer | 26 | Son | — | Michigan |
| 20 | Theodore Kramer | 24 | Son | — | Michigan |
| 21 | Angeline Kramer | 22 | Daughter | — | Michigan |
| 22 | Fred Kramer | 21 | Son | — | Michigan |
| 23 | Walter Kramer | 17 | Son | Laborer | Michigan |
| 24 | Margaret Kramer | 15 | Daughter | — | Michigan |
| 25 | Edward Kramer | 13 | Son | — | Michigan |
| 26 | Robert Kramer | 11 | Son | — | Michigan |
| 27 | Ruby Kramer | 9 | Daughter | Repairman | Michigan |
| 28 | John Kramer | 7 | Son | — | Michigan |
| 29 | George Kramer | 5 | Son | — | Michigan |
| 30 | William Kramer | 3 | Son | — | Michigan |
| 31 | Mary Kramer THIS PERSON | 1 | Daughter | — | Michigan |
| 32 | Ernest Rosemary | 32 | Head | Supervisor | Michigan |
| 33 | Irene Rosemary | 25 | Wife | — | Michigan |
| 34 | Ernest Jr Rosemary | 9 | Son | — | Michigan |
| 35 | Robert Rosemary | 7 | Son | — | Michigan |
| 36 | Richard Rosemary | 5 | Son | — | Michigan |
| 37 | William Lambert | 42 | Head | Machinist | England |
| 38 | Mildred Lambert | 40 | Wife | — | England |
| 39 | William Jr Lambert | 15 | Son | — | Canada-English |
| 40 | Dorothy Lambert | 13 | Daughter | — | Germany |
| 41 | Donald Lambert | 11 | Son | Tool Maker | Germany |
| 42 | Fred Lambert | 9 | Son | Laborer | Michigan |
| 43 | Robert Lambert | 7 | Son | — | Michigan |
| 44 | James Lambert | 5 | Son | Salesman | Michigan |
| 45 | Richard Lambert | 3 | Son | Superintendent | Michigan |
| 46 | Thomas Richardson | 54 | Head | Toolmaker | England |
| 47 | Florence Richardson | 52 | Wife | — | Pennsylvania |
| 48 | William Richardson | 27 | Son | — | Michigan |
| 49 | James J Swartz | 40 | Boarder | Barber | Illinois |
| 50 | Charles Salisbury | 38 | Boarder | Salesman | Ohio |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)