JG
John Grimes — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Washington, Maryland
Our Model Tree links this John Grimes across the 1920 and 1930 US Censuses in Washington, Maryland (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 6-person household.
Age 36
b. ~1894
Male
Head
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Washington, Maryland |
| Surname | Grimes |
| Given Name | John B. H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 18 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Tannery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Veteran | no |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Williamsport Town |
| Est. Birth Year | ~1894 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Richard Grimes | Son | — | 10 | ~1920 |
| John Grimes | Head | — | 36 | ~1894 |
| Harry Grimes | Son | — | 7 | ~1923 |
| Bernice Grimes | Daughter | — | 15 | ~1915 |
| Roberta Grimes | Daughter | — | 13 | ~1917 |
| Mary Grimes | Other | — | 36 | ~1894 |
Census Appearances
1920
Washington, Maryland
Head, age 26
Washington, Maryland · implied b. ~1894 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grimes |
| Given Name | John B H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Fireman |
| Industry | Tannery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Washington, Maryland
Head, age 36
Washington, Maryland · implied b. ~1894 — 6 household members
| Surname | Grimes |
| Given Name | John B. H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 18 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Tannery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Veteran | no |
| 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 John Grimes across 2 US Census years (1920 and 1930) in Washington, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
John Grimes
Head · 1930 · age 36 · b. ~1894 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Washington, Maryland
Open full size
1930 US Federal Census — Washington, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus881unit:0192)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edith Tice | 20 | Wife-H | — | Maryland |
| 2 | Grace Wilson | 36 | Head-H | — | West Virginia |
| 3 | William G Nalley | 29 | Head | Weaver | Maryland |
| 4 | Ethel Nalley | 30 | Wife-H | — | Virginia |
| 5 | Carl Nalley | 9 | Son | None | Maryland |
| 6 | Joseph Nalley | 7 | Son | — | Maryland |
| 7 | Eugene Nalley | 1 | Son | — | Maryland |
| 8 | Robert Metz | 30 | Head | Laborer | Maryland |
| 9 | Mary I Metz | 27 | Wife-H | — | Maryland |
| 10 | Lawrence Metz | 5 | Son | None | Maryland |
| 11 | Catherine Metz | 3 | Daughter | — | Maryland |
| 12 | Betty J Metz | 1 | Daughter | — | Maryland |
| 13 | William Garritt | 65 | Head | Foreman | West Virginia |
| 14 | Anna Garritt | 66 | Wife-H | — | Maryland |
| 15 | Anna Gist | 4 | Grand-Daughter | — | Maryland |
| 16 | Grover C Guessford | 46 | Head | Laborer | West Virginia |
| 17 | Grace M Guessford | 28 | Wife-H | — | West Virginia |
| 18 | Charles G Guessford | 2 | Son | — | Maryland |
| 19 | Noble E Swandell | 8 | Step-Son | None | West Virginia |
| 20 | James C Swandell | 6 | Step-Son | None | Maryland |
| 21 | Anna V Swandell | 4 | Step-Daughter | None | Maryland |
| 22 | Roy H Lowry | 26 | Head | Leather Finisher | Maryland |
| 23 | Phoebe G Lowry | 22 | Wife-H | — | Maryland |
| 24 | Ellwood R Lowry | 4 | Son | None | Maryland |
| 25 | Joseph W Ziler | 52 | Head | Laborer | Maryland |
| 26 | Blanche Ziler | 50 | Wife-H | — | Maryland |
| 27 | Doris L Ziler | 9 | Daughter | None | Maryland |
| 28 | Milford Anderson | 36 | Head | Tacker | Maryland |
| 29 | Edith Anderson | 40 | Wife-H | — | Maryland |
| 30 | Milford Anderson | 16 | Son | Delivery Boy | Maryland |
| 31 | Cletus Anderson | 13 | Son | — | Maryland |
| 32 | Freddie Anderson | 12 | Son | — | Maryland |
| 33 | Hubert Anderson | 10 | Son | — | Maryland |
| 34 | Adelbert Anderson | 8 | Son | — | Maryland |
| 35 | Joseph Anderson | 7 | Son | — | Maryland |
| 36 | Sarah C Anderson | 5 | Daughter | — | Maryland |
| 37 | William Anderson | 3 | Son | — | Maryland |
| 38 | Harry Anderson | 1 | Son | — | Maryland |
| 39 | Lloyd L Stevens | 24 | Head | Painter | Pennsylvania |
| 40 | Pauline V Stevens | 21 | Wife-H | — | West Virginia |
| 41 | John B. H. Grimes THIS PERSON | 36 | Head | Laborer | Maryland |
| 42 | Mary E Grimes | 36 | Wife-H | — | Maryland |
| 43 | Bernice G Grimes | 15 | Daughter | — | Maryland |
| 44 | Roberta Grimes | 13 | Daughter | — | Maryland |
| 45 | Richard Grimes | 10 | Son | — | Maryland |
| 46 | Harry Grimes | 7 | Son | — | Maryland |
| 47 | Carl D Zink | 23 | Head | Farm Laborer | West Virginia |
| 48 | Hettie E Zink | 16 | Wife-H | — | Maryland |
| 49 | Mary J Zink | 0 | Daughter | — | Maryland |
| 50 | Nellie E Lemen | 55 | Head | Janitress | Maryland |
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)