MF
Mary Frederick — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Ashtabula, Ohio
Our Model Tree links this Mary Frederick across the 1920 and 1930 US Censuses in Ashtabula, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1911), then head of a 6-person household.
Age 9
b. ~1911
Female
Daughter
Born: Ohio
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Ashtabula, Ohio |
| Surname | Frederick |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Ashtabula City |
| Est. Birth Year | ~1911 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Richard Frederick | Son | — | 13 | ~1907 |
| H Frederick | Head | — | 43 | ~1877 |
| Wayne Frederick | Son | — | 15 | ~1905 |
| Harold Frederick | Son | — | 5 | ~1915 |
| Estella Frederick | Spouse | — | 42 | ~1878 |
| Mary Frederick | Daughter | — | 9 | ~1911 |
Census Appearances
1920
Ashtabula, Ohio
Daughter, age 9
Ashtabula, Ohio · implied b. ~1911 — 6 household members
| Surname | Frederick |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Ashtabula, Ohio
Daughter, age 19
Ashtabula, Ohio · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frederick |
| Given Name | M. Lenore |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Mary Frederick across 2 US Census years (1920 and 1930) in Ashtabula, Ohio, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Frederick
Daughter · 1920 · age 9 · b. ~1911 · Ohio
★ You are viewing this record
Sibling
Wayne Frederick
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Frederick
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Frederick
Sibling · 1920 · age 13
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
1920 US Federal Census — Ashtabula, Ohio
Open full size
1920 US Federal Census — Ashtabula, Ohio
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1346unit:0413)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bertha Weiss | 26 | Wife | — | Hungary |
| 2 | Helen Weiss | 1 | Daughter | — | Ohio |
| 3 | A W Belnap | 75 | Head | Foreman | Canada |
| 4 | Emma J Belnap | 71 | Wife | — | New York |
| 5 | Henry G Smith | 65 | Head | Laborer | Pennsylvania |
| 6 | Alice J Smith | 57 | Wife | — | Ohio |
| 7 | Clifford Smith | 19 | Son | Laborer | Ohio |
| 8 | John M Prince | 33 | Head | Shipping Clerk | Ohio |
| 9 | Leila B Prince | 33 | Wife | — | Ohio |
| 10 | Herbert S Prince | 7 | Son | — | Ohio |
| 11 | Mary J Parish | 64 | Mother-in-law | — | Pennsylvania |
| 12 | Sheridan Barber | 48 | Head | Police | Ohio |
| 13 | Alma E Barber | 43 | Wife | — | Ohio |
| 14 | John S Sargent | 54 | Head | Machinist | New York |
| 15 | Jennie Sargent | 54 | Wife | — | Ohio |
| 16 | Glenn Warner | 35 | Head | Salesman | Ohio |
| 17 | Pearl Warner | 33 | Wife | — | Ohio |
| 18 | Wendell Warner | 10 | Son | — | Ohio |
| 19 | Opal Warner | 9 | Daughter | — | Ohio |
| 20 | O Charles Forbes | 79 | Head | — | New York |
| 21 | Anna S Forbes | 77 | Wife | — | England |
| 22 | H O Frederick | 43 | Head | Dentist | Ohio |
| 23 | Estella Frederick | 42 | Wife | — | Ohio |
| 24 | Wayne Frederick | 15 | Son | — | Ohio |
| 25 | Richard Frederick | 13 | Son | — | Ohio |
| 26 | Mary Louise Frederick THIS PERSON | 9 | Daughter | — | Ohio |
| 27 | Harold Frederick | 5 | Son | — | Ohio |
| 28 | Sarah Reed | 72 | Head | — | Ohio |
| 29 | Mary Burgett | 57 | Maid | — | Ohio |
| 30 | Clarence Seabill | 41 | Head | Proprietor | Pennsylvania |
| 31 | Hannah Seabill | 41 | Wife | — | Pennsylvania |
| 32 | Raymond Seabill | 12 | Son | — | Ohio |
| 33 | Edna Seabill | 10 | Daughter | — | Ohio |
| 34 | Edgar Wilkin | 37 | Head | Carpenter | Ohio |
| 35 | Mary Wilkin | 34 | Wife | — | Ohio |
| 36 | Frank D Wilkin | 6 | Son | — | Ohio |
| 37 | S J Massingham | 79 | Head | Insurance Real Estate | Ohio |
| 38 | Elizabeth Massingham | 53 | Wife | — | New York |
| 39 | Thomas Rice | 64 | Head | Molder | Scotland |
| 40 | Mary J Rice | 58 | Wife | — | Ireland |
| 41 | Elizabeth Rice | 30 | Daughter | Teacher | New York |
| 42 | Robert Rice | 29 | Son | Clerk | New York |
| 43 | Susan Rice | 27 | Daughter | Teacher | New York |
| 44 | George E Rice | 23 | Son | Electrician | New York |
| 45 | Henry Shann | 75 | Head | Proprietor | Michigan |
| 46 | Winnifred Shann | 46 | Wife | — | New York |
| 47 | Gladys Shann | 21 | Daughter | Bookkeeper | Ohio |
| 48 | Loren C Irby | 26 | Head | Messenger | Indiana |
| 49 | Lulu M Irby | 25 | Wife | — | Ohio |
| 50 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)