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Mary Mcdonnell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Champaign, Illinois
Our Model Tree links this Mary Mcdonnell across the 1920 and 1930 US Censuses in Champaign, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1868), then head of a 5-person household.
Age 62
b. ~1868
Female
Spouse
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Champaign, Illinois |
| Surname | McDonnell |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 29 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Champaign City |
| Est. Birth Year | ~1868 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Mcdonnell | Daughter | — | 24 | ~1906 |
| John Mcdonnell | Head | — | 65 | ~1865 |
| Margaret Mcdonnell | Daughter | — | 26 | ~1904 |
| Margaret Bowen | Other | — | 47 | ~1883 |
| Mary Mcdonnell | Spouse | — | 62 | ~1868 |
Census Appearances
1920
Champaign, Illinois
Spouse, age 50
Champaign, Illinois · implied b. ~1870 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonnell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Champaign, Illinois
Spouse, age 62
Champaign, Illinois · implied b. ~1868 — 5 household members
| Surname | McDonnell |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 29 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Mcdonnell across 2 US Census years (1920 and 1930) in Champaign, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcdonnell
Spouse · 1930 · age 62 · b. ~1868 · Illinois
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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 — Champaign, Illinois
Open full size
1930 US Federal Census — Champaign, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel409:0970)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Jessie Jenkinson | 43 | daughter | — | Illinois |
| 52 | Virginia Jenkinson | 13 | granddaughter | Stenographer | Illinois |
| 53 | John Mcdonnell | 65 | Head | Fire Co. | Illinois |
| 54 | Mary Mcdonnell THIS PERSON | 62 | wife | — | Illinois |
| 55 | Margaret Mcdonnell | 26 | daughter | Secretary | Illinois |
| 56 | Helen Mcdonnell | 24 | daughter | Stenographer | Illinois |
| 57 | Margaret Bowen | 47 | Sister-in-law | — | Illinois |
| 58 | Hugh A. Wack | 39 | Head | Superintendant | Illinois |
| 59 | Clara Wack | 42 | wife | — | Illinois |
| 60 | Hugh Wack | 10 | son | — | Illinois |
| 61 | Dan Mckillop | 58 | Head | Engineer | Canada |
| 62 | Eva Mckillop | 48 | wife | — | Illinois |
| 63 | Archie Mckillop | 25 | son | Brakeman | Illinois |
| 64 | Albert Mckillop | 23 | son | Brakeman | Illinois |
| 65 | Harry Mckillop | 21 | son | — | Illinois |
| 66 | Eveline Mckillop | 16 | daughter | — | Illinois |
| 67 | Andrew J. White | 50 | Head | Janitor | Illinois |
| 68 | Mary White | 48 | wife | — | Illinois |
| 69 | Donald White | 15 | son | — | Illinois |
| 70 | Betty White | 12 | daughter | — | Illinois |
| 71 | Charles Conover | 62 | Head | — | Illinois |
| 72 | Olive Conover | 60 | wife | — | Illinois |
| 73 | Jessie Conover | 33 | daughter | Clerk | Illinois |
| 74 | Edna Conover | 32 | daughter | Clerk | Illinois |
| 75 | Paul Conover | 27 | son | Exchange Branch | Illinois |
| 76 | Jesse Gilbert | 45 | Head | Engineer | Illinois |
| 77 | Dorotha Gilbert | 38 | wife | — | Illinois |
| 78 | Owen Gilbert | 13 | son | — | Illinois |
| 79 | William Gilbert | 11 | son | — | Illinois |
| 80 | Joseph Gilbert | 7 | son | — | Illinois |
| 81 | Mary Williams | 68 | Mother-in-law | — | Illinois |
| 82 | Donald Miller | 29 | Head | Editor | Indiana |
| 83 | Kathleen Miller | 24 | wife | — | Ohio |
| 84 | Sally Jean Miller | 1 | daughter | — | Illinois |
| 85 | Howard H. Wilson | 47 | Head | Teller | Maryland |
| 86 | Vera Wilson | 40 | wife | — | Illinois |
| 87 | John G. Wilson | 6 | son | — | Illinois |
| 88 | Walter M. Mcevilly | 78 | Head | Optician | Ohio |
| 89 | Margaret Mcevilly | 77 | wife | — | Illinois |
| 90 | Carrie Duffy | 49 | daughter | Modiste | Illinois |
| 91 | Estella Duffy | 46 | daughter | Assistant | Illinois |
| 92 | Joseph W. Duffy | 40 | son | Laborer | Illinois |
| 93 | Paul C. Schrader | 29 | Head | Salesman | Illinois |
| 94 | Dorothy Schrader | 22 | wife | — | Illinois |
| 95 | Paul A. Jr. Schrader | 1 | son | — | Illinois |
| 96 | Allan N. Schrader | 0 | son | — | Illinois |
| 97 | Arthur Burke | 22 | Head | Accountant | Illinois |
| 98 | Estella Burke | 58 | wife | — | Illinois |
| 99 | George P. Madden | 31 | Head | Time Keeper | Illinois |
| 100 | Merle V. Madden | 30 | wife | — | Illinois |
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)