MW
Mary Welch — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Denver, Colorado
Our Model Tree links this Mary Welch across the 1910, 1920 and 1930 US Censuses in Denver, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1863), then head of a 3-person household.
Age 67
b. ~1863
Female
Spouse
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Denver, Colorado |
| Surname | Welch |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 27 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Denver 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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Florence Welch | Daughter | — | 34 | ~1896 |
| Michael Welch | Head | — | 66 | ~1864 |
| Mary Welch | Spouse | — | 67 | ~1863 |
Census Appearances
1910
Denver, Colorado
Spouse, age 48
Denver, Colorado · implied b. ~1862 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Illinois |
| Years Married | 20 |
| Children Born | 7 |
| Children Living | 5 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Denver, Colorado
Spouse, age 57
Denver, Colorado · implied b. ~1863 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Denver, Colorado
Spouse, age 67
Denver, Colorado · implied b. ~1863 — 3 household members
| Surname | Welch |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 27 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern 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 Welch across 3 US Census years (1910, 1920 and 1930) in Denver, Colorado, using XGBoost record linkage.
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This person
Anchor record
Mary Welch
Spouse · 1930 · age 67 · b. ~1863 · Colorado
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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 — Denver, Colorado
Open full size
1930 US Federal Census — Denver, Colorado
Page Contents
35 people indexed on this census page (ia:1930:15thcensus236unit:0635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael J. Welch | 66 | Head | Mail Carrier | Massachusetts |
| 2 | Mary E. Welch THIS PERSON | 67 | Wife | — | Illinois |
| 3 | Florence L. Welch | 34 | Daughter | — | Colorado |
| 4 | Andrew Eddy | 51 | Head | Machinist | England |
| 5 | Essie G. Eddy | 49 | Wife | — | Colorado |
| 6 | Thomas T. Eddy | 24 | Son | Electrician | Colorado |
| 7 | Henry C. Eddy | 22 | Son | Accountant | Arizona |
| 8 | Audrey E. Eddy | 17 | Daughter | — | Colorado |
| 9 | Anna May Eddy | 9 | Daughter | — | Colorado |
| 10 | Bernice Alice Williams | 19 | — | — | England |
| 11 | Edward Bayson | 73 | Head | — | Pennsylvania |
| 12 | Margaret Bayson | 40 | Daughter | Teacher | Pennsylvania |
| 13 | Esther E. Coard | 24 | Cousin | Teacher | Colorado |
| 14 | Elizabeth Price | 86 | Head | — | Pennsylvania |
| 15 | Margaret A. Price | 52 | Daughter | Teacher | Pennsylvania |
| 16 | Micheal Freeman | 62 | Head | Polish Manufacturer | Ohio |
| 17 | Mary L. Freeman | 51 | Wife | — | Ohio |
| 18 | William Freeman | 29 | Son | Bookkeeper | Colorado |
| 19 | Martin D. Dougherty | 72 | Head | Real Estate | Indiana |
| 20 | Grace F. Dougherty | 57 | Wife | — | Illinois |
| 21 | Edward W. Koepnick | 35 | Head | Draftsman | Ohio |
| 22 | Susann Koepnick | 29 | Wife | — | Nebraska |
| 23 | Susie E. Mccann | 72 | Head | — | Missouri |
| 24 | Chester A. Clow | 32 | Head | Butter Maker | Colorado |
| 25 | Myrtle E. Clow | 39 | Wife | — | Colorado |
| 26 | Della L. Clow | 8 | Daughter | — | Colorado |
| 27 | Leda J. Clow | 6 | Daughter | — | Colorado |
| 28 | Mabel Wadrick | 42 | Cook | — | Iowa |
| 29 | Wavelette Gregory | 19 | Cousin | — | Oklahoma |
| 30 | Elizabeth Babcock | 44 | Head | Teacher | Colorado |
| 31 | Charles S. Babcock | 17 | Son | — | Colorado |
| 32 | James F. Babcock | 13 | Son | — | Colorado |
| 33 | Charles J. Westbrook | 43 | Roomer | Miner | Colorado |
| 35 | Augustus W. Colburn | 62 | Lodger | Salesman | Mississippi |
| 36 | A. E. Minium | 65 | Lodger | — | Illinois |
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)