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William Shaffer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Oakland, Michigan
Our Model Tree links this William Shaffer across the 1920, 1930 and 1940 US Censuses in Oakland, Michigan (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 3-person household.
Age 45
b. ~1885
Male
Head
Born: Indiana
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Oakland, Michigan |
| Surname | Shaffer |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 27 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Occupation | Grinder |
| Industry | Auto Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Grinder |
| Township / Ward | Troy Township |
| Est. Birth Year | ~1885 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Shaffer | Head | — | 45 | ~1885 |
| Martin Shaffer | Son | — | 2 | ~1928 |
| Maud Shaffer | Other | — | 51 | ~1879 |
Census Appearances
1920
Oakland, Michigan
Head, age 35
Oakland, Michigan · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaffer |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Oakland, Michigan
Head, age 45
Oakland, Michigan · implied b. ~1885 — 3 household members
| Surname | Shaffer |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 27 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Grinder |
| Industry | Auto Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Oakland-County, Michigan
Spouse, age 55
Oakland-County, Michigan · implied b. ~1885 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaffer |
| Given Name | William |
| Relationship to Head | Husband |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Troy Township |
| 1935 Residence (County) | Oakland |
| Occupation | Janitor |
| Industry | Private Garage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 740 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 William Shaffer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Shaffer
Head · 1930 · age 45 · b. ~1885 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Oakland, Michigan
Open full size
1930 US Federal Census — Oakland, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1019:0851)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert Mcrobert | 27 | Son | — | Missouri |
| 52 | Claude Mcrobert | 27 | Brother | Fireman | Missouri |
| 53 | Birdie Mcrobert | 24 | Sister-in-law | — | New York State |
| 54 | Clarence Nedrow | 42 | Head | Laborer | Nebraska |
| 55 | Sadie Nedrow | 32 | Wife | — | Pennsylvania |
| 56 | Harry E. Nedrow | 15 | Son | — | Pennsylvania |
| 57 | Earl Nedrow | 12 | Son | — | Pennsylvania |
| 58 | Florence Nedrow | 11 | Daughter | — | Pennsylvania |
| 59 | Clarence Nedrow | 9 | Son | — | Pennsylvania |
| 60 | Charles Nedrow | 7 | Son | — | Pennsylvania |
| 61 | Edward Nedrow | 5 | Son | — | Pennsylvania |
| 62 | Lewis Nedrow | 3 | Son | — | Pennsylvania |
| 63 | Dorothy Nedrow | 1 | Daughter | — | Michigan |
| 64 | Lester Brockway | 26 | Head | Sleeve Mach | Iowa |
| 65 | Mildred Brockway | 22 | Wife-H | — | Michigan |
| 66 | Barbara J. Brockway | 1 | Daughter | — | Michigan |
| 67 | John Lorenzo | 43 | Head | Contractor | Italy |
| 68 | Elizabeth Lorenzo | 30 | Wife-H | — | Indiana |
| 69 | Louis Lorenzo | 6 | Son | — | Michigan |
| 70 | John Lorenzo | 4 | Son | — | Michigan |
| 71 | Mary Ellen Lorenzo | 1 | Daughter | — | Michigan |
| 72 | William Shaffer THIS PERSON | 45 | Head | Grinder | Indiana |
| 73 | Maud Shaffer | 51 | Wife-H | — | Michigan |
| 74 | Martin James Shaffer | 2 | Son | — | Michigan |
| 75 | Alfred Lambell | 47 | Head | Die Maker | England |
| 76 | Florence Lambell | 41 | Wife-H | — | England |
| 77 | Doris Lambell | 7 | Daughter | — | England |
| 78 | Hubert Osborne | 40 | Head | Merchant | Michigan |
| 79 | Olive Osborne | 38 | Wife-H | — | Michigan |
| 80 | Nellie Osborne | 13 | Daughter | — | Michigan |
| 81 | George Osborne | 13 | Son | — | Michigan |
| 82 | Hubert Osborne | 11 | Son | — | Michigan |
| 83 | Edmond Henson | 48 | Head | Machine Repair | Michigan |
| 84 | Lula Henson | 50 | Wife-H | — | Michigan |
| 85 | William Lake | 88 | Father-in-law | — | Michigan |
| 86 | James Dooley | 60 | Head | Engineer | Canada English |
| 87 | Ethel Dooley | 40 | Wife-H | — | Canada English |
| 88 | Henry Dooley | 9 | Son | — | Michigan |
| 89 | Jane Dooley | 7 | Daughter | — | Michigan |
| 90 | William Brown | 39 | Head | Arc Welder | England |
| 91 | Jessie E. Brown | 39 | Wife-H | — | England |
| 92 | Doris E. Brown | 17 | Daughter | — | England |
| 93 | Kenneth H. Brown | 14 | Son | — | England |
| 94 | Joyce H. Brown | 12 | Daughter | — | England |
| 95 | Raymond Brown | 9 | Son | — | Michigan |
| 96 | Gordon J. Brown | 7 | Son | — | Michigan |
| 97 | Bernett Brown | 1 | Son | — | Michigan |
| 98 | Alfred Smith | 12 | Boarder | — | England |
| 99 | Joseph Chambeau | 54 | Head | Filer | Michigan |
| 100 | Lucy Chambeau | 53 | Wife-H | — | 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)