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Mary Bullock — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cass, Iowa
Our Model Tree links this Mary Bullock across the 1910, 1920, 1930 and 1940 US Censuses in Cass, Iowa (XGBoost, ~Confirmed), with identified parents Wayne & Helen — first a head (b.~1904), then head of a 3-person household.
Age 26
b. ~1904
Male
Head
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cass, Iowa |
| Surname | Bullock |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Merchant |
| Industry | Dry Goods |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Radio Set | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Merchant |
| Township / Ward | Atlantic City |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Mary Bullock | Other | — | 24 | ~1906 |
| Jacqlyn Bullock | Daughter | — | ~1930 | |
| Mary Bullock | Head | — | 26 | ~1904 |
Census Appearances
1910
Cass, Iowa
Son, age 6
Cass, Iowa · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bullock |
| Given Name | Max |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Cass, Iowa
Son, age 16
Cass, Iowa · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bullock |
| Given Name | Max |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cass, Iowa
Head, age 26
Cass, Iowa · implied b. ~1904 — 3 household members
| Surname | Bullock |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Merchant |
| Industry | Dry Goods |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 50 |
| Radio Set | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cass-County, Iowa
Head, age 36
Cass-County, Iowa · implied b. ~1904 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bullock |
| Given Name | Mat |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Atlantic city |
| 1935 Residence (County) | Cass |
| Occupation | Manager |
| Industry | Retail Dry Goods |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2100 |
| Highest Grade | C 2 |
| 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 Mary Bullock across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Wayne Bullock (~0.92 confidence) and mother Helen Bullock (~0.92 confidence) and mother Lottie Bullock (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Wayne Bullock
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Helen Bullock
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Lottie Bullock
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Bullock
Head · 1930 · age 26 · b. ~1904 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cass, Iowa
Open full size
1930 US Federal Census — Cass, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel646:0606)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Don F Costello | 1 | Son | — | Iowa |
| 52 | Thelma Shaw | 17 | Roomer | — | Iowa |
| 53 | Blanche Swinburne | 52 | Head-H | Nursing | Iowa |
| 54 | Gladys Swinburne | 23 | Daughter | Teacher | Iowa |
| 55 | Vera Swinburne | 21 | Daughter | Stenographer | Iowa |
| 56 | Wilma Long | 13 | Niece | — | Iowa |
| 57 | Anthony J Morton | 26 | Head | Proprietor | Iowa |
| 58 | Peter M Morton | 23 | Wife-H | Trained Nurse | Wisconsin |
| 59 | Mary Mcgrath | 78 | Head-H | — | Kentucky |
| 60 | Anna Mcgrath | 37 | Daughter | Secretary | Iowa |
| 61 | Ralph W Cockshoot | 38 | Head | Attorney | Iowa |
| 62 | Thera Cockshoot | 36 | Wife-H | — | Iowa |
| 63 | Ralph W Jr. Cockshoot | 0 | Son | — | Iowa |
| 64 | Lester Ackerman | 37 | Head | Owner | Iowa |
| 65 | Lois Ackerman | 36 | Wife-H | — | Iowa |
| 66 | Melissa Blakeslee | 70 | Mother-in-law | — | Indiana |
| 67 | Helen Nissen | 30 | Head-H | Saleslady | Iowa |
| 68 | Richard Hewson | 35 | Head | Owner | Illinois |
| 69 | Esther J Hewson | 31 | Wife-H | Manager | Iowa |
| 70 | Steven O'Donnell | 26 | Head | Teacher | Iowa |
| 71 | Mildred O'Donnell | 26 | Wife-H | Teacher | Iowa |
| 72 | Charles U. Kelly | 30 | Head | Salesman | Iowa |
| 73 | Mary F Kelly | 24 | Wife-H | — | Iowa |
| 74 | Charles U Jr. Kelly | 1 | Son | — | Iowa |
| 75 | Charles Talabereley | 25 | Head | Teller | Iowa |
| 76 | Bertha Talabereley | 23 | Wife-H | Clerk | Iowa |
| 77 | John F Miller | 26 | Head | Truck Driver | Iowa |
| 78 | Eva Miller | 26 | Wife-H | Book Keeper | Iowa |
| 79 | Mary Bullock THIS PERSON | 26 | Head | Merchant | Iowa |
| 80 | Mary L Bullock | 24 | Wife-H | — | Iowa |
| 81 | Jacqlyn Bullock | 0 | Daughter | — | Iowa |
| 82 | Sarah M Anderson | 53 | Head-H | — | Iowa |
| 83 | Pearline Anderson | 23 | Daughter | Registered Nurse | Virginia |
| 84 | Elmer Anderson | 19 | Son | Laborer | Iowa |
| 85 | Herbert Iverson | 35 | Roomer | Laborer | Iowa |
| 86 | Joseph S Ramsey | 20 | Head | Salesman | Nebraska |
| 87 | Madeline Ramsey | 27 | Wife-H | — | Nebraska |
| 88 | Joseph Ramsey | 2 | Son | — | North Dakota |
| 89 | Charles Walner | 61 | Roomer | Machine Bottling | Sweden |
| 90 | Thomas J Gaffey | 51 | Head | Engine Watchman | Wisconsin |
| 91 | Annie E Gaffey | 52 | Wife-H | — | New York |
| 92 | Marie Gaffey | 17 | Daughter | — | Iowa |
| 93 | Gustave H Hessel | 55 | Head | Minister | Germany-Prussia |
| 94 | John A Pilmer | 64 | Head | Labor | Iowa |
| 95 | Ena B Pilmer | 59 | Wife-H | — | Iowa |
| 96 | Elsie B Trull | 59 | Head-H | — | Iowa |
| 97 | Raymond Trull | 18 | Son | Painter | Iowa |
| 98 | Grace L Bigelow | 22 | Roomer | Bookkeeper | Iowa |
| 99 | Hazel Davis | 36 | Roomer | Stenographer | Nebraska |
| 100 | Ralph E. King | 45 | Head | Electrician | South Dakota |
Pedigree Summary
Mary
Gen 1 · 3 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)