BA
Bertha Allen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Boulder, Colorado
Our Model Tree links this Bertha Allen across the 1920 and 1930 US Censuses in Boulder, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 9-person household.
Age 46
b. ~1884
Female
Spouse
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Boulder, Colorado |
| Surname | Allen |
| Given Name | Bertha M. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Longmont City |
| Est. Birth Year | ~1884 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Mary Allen | Daughter | — | 5 | ~1925 |
| Robert Allen | Son | — | 10 | ~1920 |
| Frances Allen | Daughter | — | 19 | ~1911 |
| Kenneth Allen | Son | — | 13 | ~1917 |
| George Allen | Son | — | 8 | ~1922 |
| Bertha Allen | Spouse | — | 46 | ~1884 |
| Vernett Allen | Son | — | 18 | ~1912 |
| Luther Allen | Son | — | 22 | ~1908 |
| Vernett Allen | Head | — | 47 | ~1883 |
Census Appearances
1920
None, Colorado
Spouse, age 36
None, Colorado · implied b. ~1884 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Boulder, Colorado
Spouse, age 46
Boulder, Colorado · implied b. ~1884 — 9 household members
| Surname | Allen |
| Given Name | Bertha M. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Bertha Allen across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Allen
Spouse · 1930 · age 46 · b. ~1884 · 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 — Boulder, Colorado
Open full size
1930 US Federal Census — Boulder, Colorado
Page Contents
50 people indexed on this census page (ia:1930:15thcensus231unit:0371)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Theodore J. Schey | 17 | Son | None | Colorado |
| 52 | Sally J. Schey | 14 | daughter | None | Colorado |
| 53 | Bessie Schey | 70 | Head | None | New York |
| 54 | Birdie M. Powell | 36 | lodger | Teacher | South Dakota |
| 55 | Mary Butzman | 41 | lodger | Teacher | Missouri |
| 56 | Thomas J. Mahoney | 56 | Head | Agent | Pennsylvania |
| 57 | Martha M. Mahoney | 53 | wife | None | Ohio |
| 58 | Winifred G. Mahoney | 20 | daughter | None | Colorado |
| 59 | Isabel F. Mahoney | 18 | daughter | None | Colorado |
| 60 | Neil T. Mahoney | 17 | son | None | Colorado |
| 61 | Neil C. Sullivan | 81 | Father-in-law | None | Iowa |
| 62 | Lincoln A. Hard | 68 | Head | None | Wisconsin |
| 63 | Ester A. Hard | 66 | wife | None | Ohio |
| 64 | Harry Hopp | 28 | Son-in-law | Mechanic | Nebraska |
| 65 | Mildred A. Hopp | 26 | daughter | None | Colorado |
| 66 | Alida C. Savoye | 78 | roomer | None | Massachusetts |
| 67 | Eberhard W. Stipp | 44 | Head | Bookkeeper | Missouri |
| 68 | Mary A. Stipp | 34 | wife | None | Kansas |
| 69 | Max F. Lengner | 27 | Head | Proprieter | Germany |
| 70 | Emma H. Lengner | 22 | wife | None | Kansas |
| 71 | James Townley | 69 | Head | None | Massachusetts |
| 72 | Maggie M. Townley | 63 | wife | None | Ohio |
| 73 | Mildred L. Brown | 26 | daughter | None | Colorado |
| 74 | Lyle Brown | 26 | Son-in-law | None | Colorado |
| 75 | Fred C. Beverly | 53 | Head | Druggist | Pennsylvania |
| 76 | Grace Beverly | 49 | wife | None | Wisconsin |
| 77 | Fred Beverly | 21 | son | None | Colorado |
| 78 | Vernett S. Allen | 47 | Head | Wholesaler | Colorado |
| 79 | Bertha M. Allen THIS PERSON | 46 | wife | None | Pennsylvania |
| 80 | Luther W. Allen | 22 | son | Salesman | Colorado |
| 81 | Frances C. Allen | 19 | daughter | None | Colorado |
| 82 | Vernett S. Jr. Allen | 18 | son | None | Colorado |
| 83 | Kenneth B. Allen | 13 | son | None | Colorado |
| 84 | Robert W. Allen | 10 | son | None | Colorado |
| 85 | George R. Allen | 8 | son | None | Colorado |
| 86 | Mary L. Allen | 5 | daughter | None | Colorado |
| 87 | Benjamin F. Jones | 69 | Head | Salesman | Wisconsin |
| 88 | Lottie L. Jones | 62 | wife | None | Iowa |
| 89 | Arthur C. Jones | 42 | son | Plummer | Missouri |
| 90 | Glenn H. Jones | 38 | son | Plummer | Missouri |
| 91 | Louis F. Steuerwald | 63 | Head | Doctor | Wisconsin |
| 92 | Alice E. Steuerwald | 57 | wife | None | Iowa |
| 93 | Lois Steuerwald | 36 | daughter | None | Colorado |
| 94 | Albert C. Null | 50 | Head | Agent | Missouri |
| 95 | Mattie Null | 43 | wife | None | Missouri |
| 96 | Clifton A. (W.) Null | 21 | son | None | Missouri |
| 97 | Arthur Null | 18 | son | None | Missouri |
| 98 | Martha G. Null | 14 | daughter | None | Colorado |
| 99 | Hattie Denis | 72 | Head | None | New York |
| 100 | Grace Denis | 54 | daughter | None | Colorado |
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)