JC
John Cramer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Kent, Michigan
Our Model Tree links this John Cramer across the 1920 and 1930 US Censuses in Kent, Michigan (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 7-person household.
Age 14
b. ~1916
Male
Son
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Kent, Michigan |
| Surname | Cramer |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Grand Rapids City |
| Est. Birth Year | ~1916 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Frederick Cramer | Son | — | 15 | ~1915 |
| Audrey Cramer | Daughter | — | 2 | ~1928 |
| Herman Cramer | Head | — | 47 | ~1883 |
| Harold Cramer | Son | — | 4 | ~1926 |
| Margaret Cramer | Daughter | — | 10 | ~1920 |
| Gertrude Cramer | Other | — | 34 | ~1896 |
| John Cramer | Son | — | 14 | ~1916 |
Census Appearances
1920
Kent, Michigan
Son, age 3
Kent, Michigan · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cramer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Kent, Michigan
Son, age 14
Kent, Michigan · implied b. ~1916 — 7 household members
| Surname | Cramer |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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 |
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 John Cramer across 2 US Census years (1920 and 1930) in Kent, Michigan, using XGBoost record linkage.
Show:
This person
Anchor record
John Cramer
Son · 1930 · age 14 · b. ~1916 · Michigan
★ You are viewing this record
Sibling
Margaret Cramer
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Audrey Cramer
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Cramer
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Cramer
Sibling · 1930 · age 4
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 — Kent, Michigan
Open full size
1930 US Federal Census — Kent, Michigan
Page Contents
47 people indexed on this census page (ia:1930:michigancensus00reel1000rs:0951)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earle C. Bullock | 30 | Head | Draftsman | Indiana |
| 2 | Dorothy G. Bullock | 29 | Wife-H | — | Michigan |
| 3 | Kenneth G. Bullock | 7 | Son | — | Michigan |
| 4 | Roger B. Bullock | 5 | Son | — | Michigan |
| 5 | Donald J. Bullock | 1 | Son | — | Michigan |
| 6 | John R. Marcos | 36 | Head | Proprietor | Illinois |
| 7 | Mildred A. Marcos | 31 | Wife-H | — | Michigan |
| 8 | Betty Jane Marcos | 10 | Daughter | — | Michigan |
| 9 | Alfred Rifenberg | 31 | Head | Manager | Michigan |
| 10 | Edith Rifenberg | 31 | Wife-H | — | Michigan |
| 11 | Patricia Rifenberg | 3 | Daughter | — | Michigan |
| 12 | Richard A. Shuken | 28 | Head | Bookkeeper | Michigan |
| 13 | Leona A. Shuken | 27 | Wife-H | — | Michigan |
| 14 | Gordon E. Marvin | 35 | Head | Officer | Michigan |
| 15 | Ethel G. Marvin | 26 | Wife-H | — | Michigan |
| 16 | Gordon E. Marvin | 4 | Son | — | Michigan |
| 17 | Doris M. Marvin | 1 | Daughter | — | Michigan |
| 18 | John Van Heulen | 34 | Head | Foreman | Michigan |
| 19 | Mary Van Heulen | 31 | Wife-H | — | Michigan |
| 20 | Jean C. Van Heulen | 3 | Daughter | — | Michigan |
| 21 | Dolores R. Van Heulen | 2 | Daughter | — | Michigan |
| 22 | Harry R. Spangenberg | 35 | Head | Stockman | Ohio |
| 23 | Bertha M. Spangenberg | 32 | Wife-H | — | Michigan |
| 24 | Clifford S. Spangenberg | 4 | Son | — | Michigan |
| 25 | Raymond L. Spangenberg | 2 | Son | — | Michigan |
| 26 | Herman W. Cramer | 47 | Head | Proprietor | Michigan |
| 27 | Gertrude Cramer | 34 | Wife-H | — | Michigan |
| 28 | Frederick H. Cramer | 15 | Son | — | Michigan |
| 29 | John M. Cramer THIS PERSON | 14 | Son | — | Michigan |
| 30 | Margaret V. Cramer | 10 | Daughter | — | Michigan |
| 31 | Harold R. Cramer | 4 | Son | — | Michigan |
| 32 | Audrey L. Cramer | 2 | Daughter | — | Michigan |
| 33 | Adolph Burkhard | 46 | Head | Proprietor | Indiana |
| 34 | Olie E. Burkhard | 50 | Wife-H | — | Indiana |
| 35 | Gertrude Hescott | 77 | Mother-in-law | — | Indiana |
| 36 | Albert V. Deering | 43 | Head | Proprietor | Michigan |
| 37 | Lena Deering | 28 | Wife-H | — | Michigan |
| 38 | Louise K. Deering | 6 | Daughter | — | Michigan |
| 39 | Emil G. Zipp | 29 | Head | City Salesman | Michigan |
| 40 | Dorothy G. Zipp | 26 | Wife-H | — | Michigan |
| 41 | Frank C. Burk | 30 | Head | Accountant | Michigan |
| 42 | Marie Burk | 29 | Wife-H | — | Michigan |
| 43 | Robert G. Burk | 3 | Son | — | Michigan |
| 44 | James E. Morgan | 37 | Head | Traffic Mgr | Michigan |
| 45 | Ellen M. Morgan | 35 | Wife-H | Stenographer | Michigan |
| 46 | Harry Benedict | 25 | Head | City Salesman | Michigan |
| 47 | Bernice V. Benedict | 22 | Wife-H | Teacher | Michigan |
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)