TR
Thomas Ryan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Thomas Ryan across the 1910, 1920, 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed), with identified parents Julia — first a son (b.~1899), then head of a 4-person household.
Age 31
b. ~1899
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Ryan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Clerk |
| Industry | Railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1899 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Julia Ryan | Head | — | 62 | ~1868 |
| Thomas Ryan | Son | — | 31 | ~1899 |
| James Ryan | Son | — | 42 | ~1888 |
| Edward Ryan | Son | — | 35 | ~1895 |
Census Appearances
1910
Polk, Iowa
Son, age 11
Polk, Iowa · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Polk, Iowa
Son, age 21
Polk, Iowa · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Thomas |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Occupation | Car Clerk |
| Industry | Railway Depot |
| Class of Worker | W |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 31
Polk, Iowa · implied b. ~1899 — 4 household members
| Surname | Ryan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Occupation | Clerk |
| Industry | Railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 42
Polk-County, Iowa · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Carpenter |
| Industry | Garage |
| Class of Worker | OA |
| Hours Worked | 44 |
| Income (1939) | 150 |
| Highest Grade | S-8 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Thomas Ryan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Julia Ryan (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Julia Ryan
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Ryan
Son · 1930 · age 31 · b. ~1899 · Iowa
★ You are viewing this record
Sibling
James Ryan
Sibling · 1930 · age 42
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Ryan
Sibling · 1930 · age 35
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 — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel677:0715)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary L Grady | 75 | Head | Proprietor | Iowa |
| 2 | Vivian Patterson | 16 | Lodger | — | Iowa |
| 3 | — | None | — | — | — |
| 4 | — | None | — | — | — |
| 5 | — | None | — | — | — |
| 6 | — | None | — | — | — |
| 7 | Charles A Parker | 53 | Head | Laborer | Illinois |
| 8 | Kate Parker | 45 | Wife | — | Iowa |
| 9 | Charles E Parker | 23 | Son | Laborer | Iowa |
| 10 | George H Christensen | 38 | Head | Fireman | Iowa |
| 11 | Lucy L Christensen | 34 | Wife | — | Iowa |
| 12 | Gladys Christensen | 16 | Daughter | — | Iowa |
| 13 | Frances Christensen | 14 | Daughter | — | Iowa |
| 14 | Harry Brown | 33 | Head | Poultry Dresser | England |
| 15 | Bernice Brown | 25 | Wife | Teacher | Iowa |
| 16 | — | None | — | — | — |
| 17 | — | None | — | — | — |
| 18 | — | None | — | — | — |
| 19 | — | None | — | — | — |
| 20 | — | None | — | — | — |
| 21 | — | None | — | — | — |
| 22 | — | None | — | — | — |
| 23 | — | None | — | — | — |
| 24 | — | None | — | — | — |
| 25 | — | None | — | — | — |
| 26 | — | None | — | — | — |
| 27 | — | None | — | — | — |
| 28 | — | None | — | — | — |
| 29 | — | None | — | — | — |
| 30 | Robert Heathcote | 42 | Head | Miner | Virginia |
| 31 | Janie E Heathcote | 38 | Wife | — | Kansas |
| 32 | Lucile Heathcote | 10 | Daughter | — | Iowa |
| 33 | Elmira Heathcote | 7 | Daughter | — | Iowa |
| 34 | Robert R Heathcote | 4 | Son | — | Iowa |
| 35 | John J Quigley | 55 | Head | Miner | Iowa |
| 36 | Almira M Quigley | 51 | Wife | — | Iowa |
| 37 | Clinton M Quigley | 25 | Son | — | Iowa |
| 38 | Orville Quigley | 21 | Son | Coal Miner | Iowa |
| 39 | Mae M Nowels | 35 | Head | — | Missouri |
| 40 | Edward E Nowels | 12 | Son | — | Iowa |
| 41 | Eileen A Nowels | 11 | Son | — | Iowa |
| 42 | Virginia L Nowels | 6 | Daughter | — | Iowa |
| 43 | John J Nowels | 3 | Son | — | Iowa |
| 44 | Gail E Baker | 17 | Daughter | Maid | Iowa |
| 45 | Julia Ryan | 62 | Head | — | Illinois |
| 46 | James Ryan | 42 | Son | Motorman | Iowa |
| 47 | Edward Ryan | 35 | Son | Yard Clerk | Iowa |
| 48 | Thomas Ryan THIS PERSON | 31 | Son | Clerk | Iowa |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
Related Census Records
Pedigree Summary
Thomas + 2 siblings
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)