JP
John Preston — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Harford, Maryland
Our Model Tree links this John Preston across the 1920 and 1930 US Censuses in Harford, Maryland (XGBoost, ~Confirmed) — first a son (b.~1901), then head of a 6-person household.
Age 29
b. ~1901
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Harford, Maryland |
| Surname | Preston |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Merchantile |
| Industry | General Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Merchantile |
| Township / Ward | District 4 |
| Est. Birth Year | ~1901 |
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 |
|---|---|---|---|---|
| Clara Preston | Spouse | — | 50 | ~1880 |
| Bernice Preston | Daughter | — | 10 | ~1920 |
| John Preston | Son | — | 29 | ~1901 |
| Amelia Preston | Daughter | — | 28 | ~1902 |
| Milford Preston | Son | — | 20 | ~1910 |
| John Preston | Head | — | 54 | ~1876 |
Census Appearances
1920
Harford, Maryland
Son, age 19
Harford, Maryland · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Preston |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Harford, Maryland
Son, age 29
Harford, Maryland · implied b. ~1901 — 6 household members
| Surname | Preston |
| Given Name | John C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Merchantile |
| Industry | General Store |
| Class of Worker | W |
| Can Read/Write | 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 Preston across 2 US Census years (1920 and 1930) in Harford, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
John Preston
Son · 1930 · age 29 · b. ~1901 · Maryland
★ You are viewing this record
Sibling
Milford Preston
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Amelia Preston
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Preston
Sibling · 1930 · age 10
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 — Harford, Maryland
Open full size
1930 US Federal Census — Harford, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus875unit:0943)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice J Martin | 3 | Daughter | — | Maryland |
| 2 | Wilma I Martin | 1 | Daughter | — | Maryland |
| 3 | Henry J Cassell | 19 | Lodger | Laborer | Maryland |
| 4 | Estel M Grafton | 40 | Servant | Horse Rubber|Horse Keeper | Maryland |
| 5 | Thomas J Ayres | 72 | Head | — | Maryland |
| 6 | Sarah E Ayres | 62 | Wife | — | Maryland |
| 7 | Laura A Ward | 24 | Niece | Nurse Girl | Maryland |
| 8 | John B Almoney | 59 | Head | Farmer | Maryland |
| 9 | Elizabeth L Almoney | 60 | Wife | — | Maryland |
| 10 | Robert Almoney | 61 | Cousin | Laborer | Maryland |
| 11 | Martha A Cummings | 51 | Cousin | Housekeeper | Maryland |
| 12 | Tom Brown | 40 | Servant | Laborer | Not known |
| 13 | Thomas C Robinson | 39 | Head | Doctor | Maryland |
| 14 | Alice R Robinson | 34 | Wife | — | Maryland |
| 15 | Geneva J Robinson | 1 | Daughter | — | Maryland |
| 16 | William W Smith | 14 | Servant | Chore Boy | Maryland |
| 17 | John W Preston | 54 | Head | — | Maryland |
| 18 | Clara H Preston | 50 | Wife | — | Pennsylvania |
| 19 | John C Preston THIS PERSON | 29 | Son | Merchantile | Maryland |
| 20 | Amelia V Preston | 28 | Daughter | — | Maryland |
| 21 | Milford K Preston | 20 | Son | Farmer | Maryland |
| 22 | Bernice B Preston | 10 | Daughter | — | Maryland |
| 23 | Charles C Ayres | 37 | Head | Physician | Maryland |
| 24 | Mary M Ayres | 31 | Wife | — | Maryland |
| 25 | Lillian H Lutton | 17 | Servant | — | Maryland |
| 26 | Iona V Henderson | 79 | Head | — | Maryland |
| 27 | John W Carman | 51 | Head | Laborer | Maryland |
| 28 | Ruth E Carman | 29 | Wife | — | Maryland |
| 29 | Charlie B Carman | 5 | Son | — | Maryland |
| 30 | Norman A Carman | 3 | Son | — | Maryland |
| 31 | Anna R Carman | 0 | Daughter | — | Maryland |
| 32 | Norman H Powell | 33 | Nephew | Laborer | Maryland |
| 33 | John C Sytle | 45 | Head | Clerk | Maryland |
| 34 | Alice C Sytle | 49 | Wife | — | Maryland |
| 35 | James B Kenly | 73 | Head | Farmer | Maryland |
| 36 | Emma S Kenly | 71 | Wife | — | Maryland |
| 37 | William F Kenly | 31 | Son | Mechanic | Maryland |
| 38 | John W Kenly | 27 | Son | Mechanic | Maryland |
| 39 | Bertrum Wright | 36 | Head | Farmer | Maryland |
| 40 | Elizabeth M Wright | 37 | Wife | — | Maryland |
| 41 | Bertrum D Wright | 13 | Son | — | Maryland |
| 42 | Gladys J Wright | 5 | Daughter | — | Maryland |
| 43 | Barbara M Gilbert | 77 | Lodger | — | Maryland |
| 44 | Ella J Gilbert | 75 | Lodger | — | Maryland |
| 45 | Charles R Sytle | 61 | Head | Merchant | Maryland |
| 46 | Mary G Sytle | 59 | Wife | — | Pennsylvania |
| 47 | Hans P Nelson | 66 | Head | Poultryman | Maryland |
| 48 | Elizabeth M Nelson | 58 | Wife | — | Maryland |
| 49 | Alice Bull | 32 | Servant | Housekeeper | Pennsylvania |
| 50 | William R Bay | 57 | Head | Farmer | Maryland |
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)