JZ
John Zimmerman — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Frederick, Maryland
Our Model Tree links this John Zimmerman across the 1900, 1910 and 1920 US Censuses in Frederick, Maryland (XGBoost, ~Confirmed) — first a head (b.~1841), then head of a 3-person household.
Age 69
b. ~1841
Male
Head
Born: Maryland
Married
1910 Census Record Details
| Census Year | 1910 |
| Location | Frederick, Maryland |
| Surname | Zimmerman |
| Given Name | John T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 45 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Own Income |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Own Income |
| Township / Ward | Frederick City |
| Est. Birth Year | ~1841 |
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 1910 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Sarah Zimmerman | Daughter | — | 31 | ~1879 |
| John Zimmerman | Head | — | 69 | ~1841 |
| Annie Zimmerman | Spouse | — | 66 | ~1844 |
Census Appearances
1900
Frederick, Maryland
Head, age 55
Frederick, Maryland · implied b. ~1845 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maryland |
| Birth Month | May |
| Birth Year | 1845 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1910
Frederick, Maryland
Head, age 69
Frederick, Maryland · implied b. ~1841 — 3 household members
| Surname | Zimmerman |
| Given Name | John T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 45 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Own Income |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Frederick, Maryland
Other, age 78
Frederick, Maryland · implied b. ~1842 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Joseph C. |
| Relationship to Head | Father-in-law |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Zimmerman across 3 US Census years (1900, 1910 and 1920) in Frederick, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
John Zimmerman
Head · 1910 · age 69 · b. ~1841 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Frederick, Maryland
Open full size
1910 US Federal Census — Frederick, Maryland
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po564unit:0885)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert A. Lowry | 2 | Son | — | Maryland |
| 52 | Eubie Benj. H. Lowry | 25 | Brother-in-law | Section Hand | Maryland |
| 53 | Daniel George | 69 | Head | Street Cleaner | Maryland |
| 54 | Ada C. George | 55 | Wife | — | Maryland |
| 55 | Marguerite Summers | 55 | Head | — | Maryland |
| 56 | Emma C. Summers | 21 | Daughter | — | Maryland |
| 57 | Charlotte S. Summers | 15 | Daughter | — | Maryland |
| 58 | Charles Main | 42 | Head | Painter | Maryland |
| 59 | John T. Zimmerman THIS PERSON | 69 | Head | Own Income | Maryland |
| 60 | Annie Zimmerman | 66 | Wife | — | Maryland |
| 61 | Sarah Zimmerman | 31 | Daughter | — | Maryland |
| 62 | Edward F. Frank | 52 | Head | Own Income | Maryland |
| 63 | George Frank | 44 | Brother | — | Maryland |
| 64 | Eleanor Frank | 42 | Sister | — | Maryland |
| 65 | Lillie E. Frank | 36 | Sister | — | Maryland |
| 66 | Jacob E. Thelms | 50 | Head | Own Income | Maryland |
| 67 | Clara F. Thelms | 32 | Wife | — | Maryland |
| 68 | Helen M. Thelms | 6 | Daughter | — | Maryland |
| 69 | Anna G. Thelms | 4 | Daughter | — | Maryland |
| 70 | Emory E. Thelms | 2 | Son | — | Maryland |
| 71 | Rosa M. Shafer | 50 | Head | Own Income | Maryland |
| 72 | Lulu M. Shafer | 19 | Daughter | Box Maker | Maryland |
| 73 | James M. Conwell | 79 | Head | — | Maryland |
| 74 | Naomi Conwell | 24 | Daughter | Dressmaker | Maryland |
| 75 | Clarence L. Conwell | 20 | Son | Farm Labor | Maryland |
| 76 | Arthur E. Conwell | 18 | Son | Waiter | Maryland |
| 77 | Caroline R. Conwell | 17 | Daughter | Helper | Maryland |
| 78 | George E. Conwell | 15 | Son | Tombstone | Maryland |
| 79 | Cyrus J. Conwell | 10 | Son | — | Maryland |
| 80 | Allen E. Grannell | 52 | Head | Laborer | Ohio |
| 81 | Ida M. Grannell | 36 | Wife | — | Maryland |
| 82 | George L. Grannell | 9 | Son | Farm Labor | Maryland |
| 83 | Ruth M. Grannell | 7 | Daughter | — | Maryland |
| 84 | Sarah E. Bohn | 73 | Mother-in-law | — | Maryland |
| 85 | Harry Miller | 62 | Head | Laborer | Maryland |
| 86 | Cassie V. Miller | 52 | Wife | — | Maryland |
| 87 | Charles Miller | 42 | Son | House Work | Maryland |
| 88 | Frank H. Miller | 22 | Son | Waiter | Maryland |
| 89 | Josephine Miller | 25 | Daughter | Washing | Maryland |
| 90 | Alice R. Miller | 23 | Daughter | — | Maryland |
| 91 | Adrian Miller | 17 | Daughter | Servant | Maryland |
| 92 | William L. Bossa | 41 | Head | Cook | Maryland |
| 93 | Laura G. Bossa | 36 | Wife | — | Maryland |
| 94 | Louis Jr. Bossa | 14 | Son | Waiter | Maryland |
| 95 | Alice L. Bossa | 12 | Daughter | House Maid | Maryland |
| 96 | Wm. Ed. Bossa | 10 | Son | Errand | Maryland |
| 97 | Marie E. Bossa | 9 | Daughter | — | Maryland |
| 98 | James D. Bossa | 5 | Son | — | Maryland |
| 99 | Austin Bossa | 2 | Son | — | Maryland |
| 100 | James Sprigg | 74 | Head | Trucking | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)