WZ
William Zimmerman — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Frederick, Maryland
Our Model Tree links this William Zimmerman across the 1920, 1930 and 1940 US Censuses in Frederick, Maryland (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 3-person household.
Age 55
b. ~1875
Male
Head
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Frederick, Maryland |
| Surname | Zimmerman |
| Given Name | William W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 23 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 9000 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Farmer |
| Township / Ward | Ballenger District 23 |
| Est. Birth Year | ~1875 |
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 |
|---|---|---|---|---|
| Helen Zimmerman | Daughter | — | 24 | ~1906 |
| William Zimmerman | Head | — | 55 | ~1875 |
| Leida Zimmerman | Other | — | 53 | ~1877 |
Census Appearances
1920
Frederick, Maryland
Head, age 45
Frederick, Maryland · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Wm D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| 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
Frederick, Maryland
Head, age 55
Frederick, Maryland · implied b. ~1875 — 3 household members
| Surname | Zimmerman |
| Given Name | William W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 23 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 9000 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Other, age 66
Frederick-County, Maryland · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | William F. |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Industry | 0 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| 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 William Zimmerman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Zimmerman
Head · 1930 · age 55 · b. ~1875 · 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 — Frederick, Maryland
Open full size
1930 US Federal Census — Frederick, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus874unit:1057)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ed Golden | 21 | — | Farm Laborer | Maryland |
| 52 | Leafy F Golden | 13 | — | — | Maryland |
| 53 | John B Hickman | 57 | Head | Farmer | Maryland |
| 54 | Sarah A Hickman | 51 | Wife-H | — | Maryland |
| 55 | Leonard Sadie M Hickman | 17 | Sister | — | Maryland |
| 56 | Nellie S Hickman | 11 | Grand daughter | — | Maryland |
| 57 | John B Hickman | 9 | Grand son | — | Maryland |
| 58 | Joseph Russell | 72 | Boarder | — | Maryland |
| 59 | Oscar G Routzahn | 52 | Head | Manager | Maryland |
| 60 | Edith E Routzahn | 38 | Wife-H | — | Maryland |
| 61 | Hayes G Routzahn | 6 | Son | — | Maryland |
| 62 | Glenn E Routzahn | 3 | Son | — | Maryland |
| 63 | Russell J Hargett | 44 | Head | Farmer | Maryland |
| 64 | Grace M Hargett | 46 | Wife-H | — | Maryland |
| 65 | Lepernia R Hargett | 15 | Daughter | — | Maryland |
| 66 | Grace L Hargett | 11 | Daughter | — | Maryland |
| 67 | Cora Walsh | 64 | Head | Farmer | Maryland |
| 68 | Albert R Walsh | 25 | Son | Mechanic | Maryland |
| 69 | George F Angleberger | 44 | Head | Engineer | Maryland |
| 70 | Crystal M Angleberger | 38 | Wife-H | — | Maryland |
| 71 | John M Angleberger | 13 | Son | — | Maryland |
| 72 | Emmet H Angleberger | 11 | Son | — | Maryland |
| 73 | Rachel L Angleberger | 9 | Daughter | — | Maryland |
| 74 | Flora R Angleberger | 7 | Daughter | — | Maryland |
| 75 | Charles H Angleberger | 4 | Son | — | Maryland |
| 76 | Lindbergh Angleberger | 2 | Son | — | Maryland |
| 77 | William W Zimmerman THIS PERSON | 55 | Head | Farmer | Maryland |
| 78 | Leida K Zimmerman | 53 | Wife-H | — | Maryland |
| 79 | Helen M Zimmerman | 24 | Daughter | Stenographer | Maryland |
| 80 | Ellen N Stone | 88 | Head | — | Maryland |
| 81 | George L Stone | 53 | Son | Farmer | Maryland |
| 82 | Katie F Stone | 56 | Daughter | — | Maryland |
| 83 | Harry L Poole | 50 | Head | Farmer | Maryland |
| 84 | Etta M Poole | 49 | Wife-H | — | Maryland |
| 85 | Earl F Poole | 23 | Son | Laborer | Maryland |
| 86 | Margaret H Poole | 18 | Daughter | — | Maryland |
| 87 | Meredith P Poole | 14 | Son | — | Maryland |
| 88 | Era M Poole | 12 | Son | — | Maryland |
| 89 | Robert K Poole | 9 | Son | — | Maryland |
| 90 | John S Hines | 70 | Head | Farmer | Maryland |
| 91 | Ida L Hines | 59 | Wife-H | — | Maryland |
| 92 | Virgie E Hines | 37 | Daughter | Laborer | Maryland |
| 93 | Katherine M Hines | 15 | Grand daughter | — | Maryland |
| 94 | Philip L Culler | 60 | Head | Farmer | Maryland |
| 95 | Kate D Culler | 60 | Wife-H | — | Maryland |
| 96 | Harlan G Beard | 71 | Head | — | Maryland |
| 97 | Annie R Beard | 69 | Wife-H | — | Maryland |
| 98 | Ethel M Beard | 36 | Daughter | Clerk | Maryland |
| 99 | Samuel E Zimmerman | 61 | Head | Laborer | Maryland |
| 100 | Virginia L Zimmerman | 61 | Wife-H | — | 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)