GP
Grace Parker — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bay, Michigan
Our Model Tree links this Grace Parker across the 1920 and 1930 US Censuses in Bay, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 10-person household.
Age 16
b. ~1914
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Bay, Michigan |
| Surname | Parker |
| Given Name | Grace E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| 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 | Bay City |
| Est. Birth Year | ~1914 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Grace | Age | Birth yr |
|---|---|---|---|---|
| Sylvia Parker | Daughter | — | 8 | ~1922 |
| Martha Parker | Spouse | — | 41 | ~1889 |
| Helen Parker | Daughter | — | 12 | ~1918 |
| Alice Parker | Daughter | — | 15 | ~1915 |
| John Parker | Head | — | 41 | ~1889 |
| Grace Parker | Daughter | — | 16 | ~1914 |
| Donald Parker | Son | — | 2 | ~1928 |
| John Parker | Son | — | 13 | ~1917 |
| George Parker | Son | — | 5 | ~1925 |
| Agatha Parker | Daughter | — | 18 | ~1912 |
Census Appearances
1920
Bay, Michigan
Daughter, age 6
Bay, Michigan · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | Grace G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Bay, Michigan
Daughter, age 16
Bay, Michigan · implied b. ~1914 — 10 household members
| Surname | Parker |
| Given Name | Grace E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| 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 Grace Parker across 2 US Census years (1920 and 1930) in Bay, Michigan, using XGBoost record linkage.
Show:
This person
Anchor record
Grace Parker
Daughter · 1930 · age 16 · b. ~1914 · Michigan
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Sibling
George Parker
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvia Parker
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Parker
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agatha Parker
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Parker
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Parker
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Parker
Sibling · 1930 · age 15
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 — Bay, Michigan
Open full size
1930 US Federal Census — Bay, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel975:0107)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George A. Daugherty | 44 | Head | Electrician | Michigan |
| 2 | Cora M. Daugherty | 42 | Wife | — | Michigan |
| 3 | Donald G. Daugherty | 8 | Son | — | Michigan |
| 4 | Joseph P. Bourdon | 35 | Head | Wood Worker | Michigan |
| 5 | Edna J. Bourdon | 34 | Wife | — | Nebraska |
| 6 | Vera Bourdon | 15 | Daughter | — | Michigan |
| 7 | Madeline V. Bourdon | 13 | Daughter | — | Michigan |
| 8 | Emma M. Gates | 52 | Head | — | Michigan |
| 9 | William H. Gates | 14 | Son | — | Michigan |
| 10 | Harry H. Seeley | 34 | Head | Lumber Inspector | Michigan |
| 11 | Viola G. Seeley | 33 | Wife | — | Canada English |
| 12 | Violet M. Seeley | 11 | Daughter | — | Michigan |
| 13 | Dorothy J. Seeley | 4 | Daughter | — | Michigan |
| 14 | Edward J. Sloan | 47 | Head | Proprietor | Michigan |
| 15 | Estella Sloan | 46 | Wife | — | Michigan |
| 16 | Margaret Sloan | 13 | Daughter | — | Michigan |
| 17 | Edward J. Jr. Sloan | 10 | Son | — | Michigan |
| 18 | John J. De Young | 55 | Head | Proprietor | Holland |
| 19 | Selena De Young | 55 | Wife | — | Michigan |
| 20 | Howard J. De Young | 14 | Son | — | Michigan |
| 21 | Ward H. Catlin | 50 | Head | Brakeman | Michigan |
| 22 | Eleanor L. Catlin | 56 | Wife | — | Canada English |
| 23 | Manning P. Catlin | 20 | Son | Carpenter | Michigan |
| 24 | Emily E. Catlin | 17 | Daughter | — | Michigan |
| 25 | Ralph W. S. Catlin | 16 | Son | — | Michigan |
| 26 | George Hannan | 55 | Head | Locomotive Engineer | Michigan |
| 27 | Sarah J. Hannan | 57 | Wife | — | Canada English |
| 28 | Joseph L. Hannan | 35 | Son | Laborer | Michigan |
| 29 | Laura L. Hannan | 19 | Daughter | — | Michigan |
| 30 | Walter R. Hannan | 7 | Son | — | Michigan |
| 31 | John Parker | 41 | Head | Machinist | Michigan |
| 32 | Martha Parker | 41 | Wife | — | Michigan |
| 33 | Agatha M. Parker | 18 | Daughter | Seamstress | Michigan |
| 34 | Grace E. Parker THIS PERSON | 16 | Daughter | — | Michigan |
| 35 | Alice D. Parker | 15 | Daughter | — | Michigan |
| 36 | John H. Parker | 13 | Son | — | Michigan |
| 37 | Helen M. Parker | 12 | Daughter | — | Michigan |
| 38 | Sylvia E. Parker | 8 | Daughter | — | Michigan |
| 39 | George T. Parker | 5 | Son | — | Michigan |
| 40 | Donald E. Parker | 2 | Son | — | Michigan |
| 41 | Marshall La May | 37 | Head | Machinist | Michigan |
| 42 | Ella La May | 34 | Wife | — | Scotland |
| 43 | Marshall Jr. La May | 13 | Son | — | Michigan |
| 44 | Harold La May | 7 | Son | — | Michigan |
| 45 | James H. La May | 3 | Son | — | Michigan |
| 46 | Irvin La May | 1 | Son | — | Michigan |
| 47 | Joseph A. La May | 73 | Father | — | Canada French |
| 48 | Agatha La May | 69 | Mother | — | Canada French |
| 49 | Joseph Godaneis | 49 | Half Brother | Blacksmith | Canada French |
| 50 | William E. Palm | 50 | Head | Teamster | Canada English |
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)