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Harold Robinson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Black Hawk, Iowa
Our Model Tree links this Harold Robinson across the 1920 and 1930 US Censuses in Black Hawk, Iowa (XGBoost, ~Confirmed) — first a son (b.~1904), then head of a 8-person household.
Age 26
b. ~1904
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Black Hawk, Iowa |
| Surname | Robinson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Electrical |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Truck Driver |
| Township / Ward | Waterloo |
| 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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Marion Robinson | Daughter | — | 17 | ~1913 |
| Sam Robinson | Head | — | 68 | ~1862 |
| Harold Robinson | Son | — | 26 | ~1904 |
| Clinton Robinson | Son | — | 19 | ~1911 |
| Lucille Robinson | Daughter | — | 12 | ~1918 |
| Ethel Robinson | Spouse | — | 46 | ~1884 |
| Gladys Robinson | Daughter | — | 16 | ~1914 |
| Hanna Robinson | Son | — | 9 | ~1921 |
Census Appearances
1920
Black Hawk, …
Son, age 15
Black Hawk, Iowa · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robinson |
| Given Name | Harold L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Black Hawk, …
Son, age 26
Black Hawk, Iowa · implied b. ~1904 — 8 household members
| Surname | Robinson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Truck driver |
| Industry | Electrical |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Harold Robinson across 2 US Census years (1920 and 1930) in Black Hawk, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Harold Robinson
Son · 1930 · age 26 · b. ~1904 · Iowa
★ You are viewing this record
Sibling
Marion Robinson
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clinton Robinson
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Robinson
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Robinson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hanna Robinson
Sibling · 1930 · age 9
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 — Black Hawk, Iowa
Open full size
1930 US Federal Census — Black Hawk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel642:0585)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ida H Blomgren | 49 | Wife | — | Iowa |
| 52 | Paul Blomgren | 23 | Son | Laborer | Iowa |
| 53 | Ruth Blomgren | 21 | Daughter | Operator | Iowa |
| 54 | Lester Blomgren | 20 | Son | Laborer | Iowa |
| 55 | Edwin Blomgren | 17 | Son | Laborer | Iowa |
| 56 | Glenn Blomgren | 14 | Son | — | Iowa |
| 57 | Dale Blomgren | 11 | Son | — | Iowa |
| 58 | Milton Hurlburt | 35 | Head | Motorman | Iowa |
| 59 | Ealy H Hurlburt | 31 | Wife | — | Texas |
| 60 | Juanita Hurlburt | 7 | Daughter | — | Iowa |
| 61 | Alta Mae Hurlburt | 5 | Daughter | — | Iowa |
| 62 | Mildred Hurlburt | 3 | Daughter | — | Iowa |
| 63 | Barbara Hurlburt | 1 | Daughter | — | Iowa |
| 64 | Lyle Diggins | 24 | Head | Machinist | Iowa |
| 65 | Mary H Diggins | 22 | Wife | Stenographer | Iowa |
| 66 | Nettie Devries | 49 | Head | Saleslady | Iowa |
| 67 | Leona Devries | 28 | Daughter | Stenographer | Iowa |
| 68 | Lloyd Devries | 24 | Son | Clerk | Washington |
| 69 | Charles Bender | 33 | Lodger | Clerical Work | Iowa |
| 70 | J. M. Henley | 71 | Head | Painter | Texas |
| 71 | Mary H Henley | 70 | Wife | — | Iowa |
| 72 | F. J. Gibbs | 72 | Head | — | Iowa |
| 73 | Alice H Gibbs | 62 | Wife | — | Iowa |
| 74 | Warren Breyman | 37 | Head | Auto Repair | Illinois |
| 75 | Rose H Breyman | 37 | Wife | — | Iowa |
| 76 | Stephen Kaley | 27 | Brother | Chiropractor | Iowa |
| 77 | George Faulkner | 41 | Head | Letter Carrier | Iowa |
| 78 | Walter Delaney | 45 | Head | Conductor | Iowa |
| 79 | Mary H Delaney | 52 | Wife | — | Iowa |
| 80 | Paula Mcdermott | 37 | Lodger | Stenographer | Iowa |
| 81 | Margaret Knepper | 20 | Lodger | — | Iowa |
| 82 | Bert Safford | 29 | Head | Painter | Iowa |
| 83 | Anna H Safford | 20 | Wife | — | Missouri |
| 84 | E. Milton Agnew | 69 | Lodger | — | Wisconsin |
| 85 | Sam Robinson | 68 | Head | Laborer | Iowa |
| 86 | Ethel H Robinson | 46 | Wife | — | Iowa |
| 87 | Harold Robinson THIS PERSON | 26 | Son | Truck Driver | Iowa |
| 88 | Clinton W Robinson | 19 | Son | — | Iowa |
| 89 | Marion Robinson | 17 | Daughter | — | Iowa |
| 90 | Gladys Robinson | 16 | Daughter | — | Iowa |
| 91 | Lucille Robinson | 12 | Daughter | — | Iowa |
| 92 | Hanna Robinson | 9 | Son | — | Iowa |
| 93 | Samuel Darland | 56 | Head | Teamster | New York |
| 94 | Fred Winders | 58 | Head | — | Iowa |
| 95 | Elizabeth H Winders | 60 | Wife | — | Wisconsin |
| 96 | George F Heath | 24 | Head | Clerical Work | Iowa |
| 97 | Mary H Heath | 25 | Wife | — | Iowa |
| 98 | Jesse Kagley | 57 | Head | Carpenter | Iowa |
| 99 | Mary H Kagley | 55 | Wife | — | Nebraska |
| 100 | Thelma Kagley | 17 | Daughter | — | Iowa |
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)