JD
John Donovan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · St Clair, Illinois
Our Model Tree links this John Donovan across the 1900, 1910 and 1920 US Censuses in St Clair, Illinois (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 8-person household.
Age 57
b. ~1863
Male
Head
Born: Missouri
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | St Clair, Illinois |
| Surname | Donovan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | East St Louis City |
| Est. Birth Year | ~1863 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Marie Donovan | Daughter | — | 14 | ~1906 |
| John Donovan | Head | — | 57 | ~1863 |
| James Donovan | Son | — | 28 | ~1892 |
| Harry Donovan | Son | — | 24 | ~1896 |
| Thomas Donovan | Son | — | 20 | ~1900 |
| Edward Donovan | Son | — | 18 | ~1902 |
| Michael Donovan | Son | — | 22 | ~1898 |
| Mary Donovan | Spouse | — | 50 | ~1870 |
Census Appearances
1900
St Clair, …
Head, age 37
St Clair, Illinois · implied b. ~1863 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Missouri |
| Birth Month | Oct |
| Birth Year | 1863 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1910
St Clair, …
Head, age 46
St Clair, Illinois · implied b. ~1864 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Missouri |
| Years Married | 17 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Merchant |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1920
St Clair, …
Head, age 57
St Clair, Illinois · implied b. ~1863 — 8 household members
| Surname | Donovan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Donovan across 3 US Census years (1900, 1910 and 1920) in St Clair, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
John Donovan
Head · 1920 · age 57 · b. ~1863 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — St Clair, Illinois
Open full size
1920 US Federal Census — St Clair, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu405unit:0222)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur J Hallows | 49 | Head | Commission | England |
| 2 | Lida L Hallows | 44 | Wife | None | Illinois |
| 3 | Edna I Hallows | 17 | Daughter | Stenographer | Illinois |
| 4 | Raymond Hallows | 15 | Son | None | Illinois |
| 5 | Robert A Hallows | 6 | Son | None | Illinois |
| 6 | Henry Topf | 33 | Head | Yardmaster | Austria |
| 7 | Louise Topf | 29 | Wife | None | Austria |
| 8 | Elmer Topf | 10 | Son | None | Illinois |
| 9 | Jerome Topf | 4 | Son | None | Illinois |
| 10 | Claude Martin | 22 | Head | Car Repairer | Illinois |
| 11 | Beatrice Martin | 19 | Wife | None | Illinois |
| 12 | Bernice Martin | 1 | Daughter | None | Illinois |
| 13 | James Snell | 49 | Head | Fireman | Missouri |
| 14 | Francis Snell | 43 | Wife | None | Missouri |
| 15 | James Snell | 17 | Son | Clerk | Missouri |
| 16 | Agnes Snell | 15 | Daughter | None | Illinois |
| 17 | Helen Snell | 13 | Daughter | None | Illinois |
| 18 | Farrell Snell | 10 | Son | None | Illinois |
| 19 | Kenneth Snell | 3 | Son | None | Illinois |
| 20 | Roge Blazinic | 35 | Head | Laborer | Croatia |
| 21 | Victoria Blazinic | 29 | Wife | None | Austria |
| 22 | Deloy C Biggs | 55 | Head | Carpenter | Illinois |
| 23 | Margaret Biggs | 53 | Wife | None | Illinois |
| 24 | George Biggs | 32 | Son | Laborer | Missouri |
| 25 | Charles Biggs | 22 | Son | Laborer | Illinois |
| 26 | John Donovan THIS PERSON | 57 | Head | None | Missouri |
| 27 | Mary Donovan | 50 | Wife | None | Missouri |
| 28 | James Donovan | 28 | Son | Proprietor | Missouri |
| 29 | Harry Donovan | 24 | Son | None | Illinois |
| 30 | Michael Donovan | 22 | Son | None | Illinois |
| 31 | Thomas Donovan | 20 | Son | Clerk | Illinois |
| 32 | Edward Donovan | 18 | Son | Clerk | Illinois |
| 33 | Marie Donovan | 14 | Daughter | None | Illinois |
| 34 | Mary Hallows | 53 | Head | None | Germany |
| 35 | Michael Hallows | 31 | Son | Type Setter | Texas |
| 36 | Sophie Hallows | 23 | Daughter | Icing | Austria |
| 37 | Nick Hallows | 27 | Boarder | Laborer | Italy |
| 38 | Marie Florick | 17 | Boarder | None | Germany |
| 39 | Charles Edmond | 62 | Head | Inspector | Connecticut |
| 40 | Ethel Edmond | 40 | Wife | Trimmer Lab | Connecticut |
| 41 | Lillian Edmond | 13 | Daughter | None | Illinois |
| 42 | William Edmond | 9 | Son | None | Illinois |
| 43 | Lillian Whipple | 61 | Mother-in-law | Housekeeper | Connecticut |
| 44 | William Brinkman | 50 | Head | Fireman | Illinois |
| 45 | Jennie Brinkman | 49 | Wife | None | Illinois |
| 46 | William Brinkman | 23 | Son | None | Illinois |
| 47 | Mary Brinkman | 13 | Daughter | None | Illinois |
| 48 | Amelia Brinkman | 11 | Daughter | None | Illinois |
| 49 | Mary Genard | 72 | Boarder | None | Illinois |
| 50 | Clydale Warren | 20 | Head | Carpenter | Missouri |
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)