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John Mills — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Dorchester, Maryland
Our Model Tree links this John Mills across the 1900, 1910, 1920 and 1930 US Censuses in Dorchester, Maryland (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 5-person household.
Age 64
b. ~1866
Male
Head
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Dorchester, Maryland |
| Surname | Mills |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 22 |
| 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 | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Farmer |
| Township / Ward | Seventh Election District |
| Est. Birth Year | ~1866 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mills | Head | — | 64 | ~1866 |
| Catherine Mills | Other | — | 54 | ~1876 |
| Carol Mills | Son | — | 18 | ~1912 |
| Edward Mills | Son | — | 12 | ~1918 |
| Thomas Mills | Son | — | 21 | ~1909 |
Census Appearances
1900
Dorchester, Maryland
Head, age 36
Dorchester, Maryland · implied b. ~1864 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mills |
| Given Name | John B |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| Birth Month | Aug |
| Birth Year | 1864 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farming |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1910
Dorchester, Maryland
Head, age 47
Dorchester, Maryland · implied b. ~1863 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mills |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Dorchester, Maryland
Head, age 56
Dorchester, Maryland · implied b. ~1864 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mills |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Industry | Own farm |
| Class of Worker | OA |
| Can Read | No |
| Can Write | Yes |
| Speaks English | No |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Dorchester, Maryland
Head, age 64
Dorchester, Maryland · implied b. ~1866 — 5 household members
| Surname | Mills |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 22 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| 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 Mills across 4 US Census years (1900, 1910, 1920 and 1930) in Dorchester, Maryland, using XGBoost record linkage.
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This person
Anchor record
John Mills
Head · 1930 · age 64 · b. ~1866 · Maryland
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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 — Dorchester, Maryland
Open full size
1930 US Federal Census — Dorchester, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus873unit:0913)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Enock Cossich | 19 | Lodger | Farm Laborer | Maryland |
| 2 | Frank T. Arme | 37 | Head | Farmer | Oklahoma |
| 3 | Catherine Arme | 36 | Wife-H | — | Iowa |
| 4 | Elizabeth C. Arme | 11 | Daughter | — | Maryland |
| 5 | Franklin S. Arme | 9 | Son | — | Maryland |
| 6 | Josephine T. Arme | 5 | Daughter | — | Maryland |
| 7 | Robert E. Arme | 2 | Son | — | Maryland |
| 8 | Thomas H. Woolford | 46 | Head | Farmer | Maryland |
| 9 | Beulah Woolford | 48 | Wife-H | — | Maryland |
| 10 | James W. Woolford | 15 | Son | — | Maryland |
| 11 | Alpha D. Woolford | 13 | Daughter | — | Maryland |
| 12 | Rebecca S. Woolford | 12 | Daughter | — | Maryland |
| 13 | Thomas G. Woolford | 10 | Son | — | Maryland |
| 14 | Evelyn Woolford | 9 | Daughter | — | Maryland |
| 15 | Bishop Woolford | 7 | Son | — | Maryland |
| 16 | Lester Woolford | 5 | Son | — | Maryland |
| 17 | John R. Mills THIS PERSON | 64 | Head | Farmer | Maryland |
| 18 | Catherine S. Mills | 54 | Wife-H | — | Maryland |
| 19 | Thomas S. Mills | 21 | Son | Farm Laborer | Maryland |
| 20 | Carol R. Mills | 18 | Son | Farm Laborer | Maryland |
| 21 | Edward Mills | 12 | Son | — | Maryland |
| 22 | Joseph H. Smith | 68 | Head | Farm Laborer | Maryland |
| 23 | Sarah J. Smith | 50 | Wife-H | — | Maryland |
| 24 | Calvin S. Smith | 19 | Son | Farm Laborer | Maryland |
| 25 | Robert Smith | 28 | Son | Farm Laborer | Maryland |
| 26 | William H. Shenton | 35 | Head | Blacksmith | Maryland |
| 27 | Lydia A. Shenton | 36 | Wife-H | — | Maryland |
| 28 | Elizabeth D. Shenton | 13 | Daughter | — | Maryland |
| 29 | Virgie M. Shenton | 10 | Daughter | — | Maryland |
| 30 | Robert L. Shenton | 8 | Son | — | Maryland |
| 31 | Willie M. H. Shenton | 6 | Son | — | Maryland |
| 32 | John F. Patterson | 77 | Head | Farmer | Maryland |
| 33 | George G. Walker | 43 | Boarder | Farm Laborer | Maryland |
| 34 | Clara A. Walker | 41 | Boarder | — | Maryland |
| 35 | Reginald W. Walker | 17 | Boarder | — | Maryland |
| 36 | Alva E. Walker | 11 | Boarder | — | Maryland |
| 37 | James Evans | 62 | Head | Farmer | Maryland |
| 38 | Sophia Evans | 47 | Wife-H | — | New Jersey |
| 39 | Leslie Evans | 22 | Son | Farmer | Maryland |
| 40 | Elessa Westbrook | 20 | Boarder | — | Maryland |
| 41 | Zechariah Young | 55 | Head | Farmer | Maryland |
| 42 | Russell Young | 20 | Son | Farm Laborer | Maryland |
| 43 | Herbert Young | 16 | Son | Farm Laborer | Maryland |
| 44 | Major C. Slacum | 52 | Head | Garage | Maryland |
| 45 | Rachel B. Slacum | 47 | Wife-H | — | Maryland |
| 46 | Bonnie K. Slacum | 22 | Daughter | — | Maryland |
| 47 | Charles G. Slacum | 15 | Son | — | Maryland |
| 48 | George Nicholas | 60 | Head | Farm Laborer | Maryland |
| 49 | Annie M. Nicholas | 53 | Wife-H | Presser | Connecticut |
| 50 | Virgil M. Nicholas | 15 | Son | Laborer | 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)