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Harold Martin — 1920 US Census Record
Model Tree available1920 United States Federal Census · Dubuque, Iowa
Our Model Tree links this Harold Martin across the 1900, 1910 and 1920 US Censuses in Dubuque, Iowa (XGBoost, ~Confirmed), with identified parents Moses & Augusta — first a son (b.~1895), then head of a 4-person household.
Age 25
b. ~1895
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Dubuque, Iowa |
| Surname | Martin |
| Given Name | Harold P |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | New York |
| Mother's Birthplace | Prussia Ger |
| Additional Details | |
| Occupation | Delivery Boy |
| Industry | Department Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Delivery Boy |
| Township / Ward | Dubuque City |
| Est. Birth Year | ~1895 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Moses Martin | Head | — | 65 | ~1855 |
| Florence Martin | Daughter | — | 36 | ~1884 |
| Augusta Martin | Spouse | — | 59 | ~1861 |
| Harold Martin | Son | — | 25 | ~1895 |
Census Appearances
1900
Dubuque, Iowa
Son, age 6
Dubuque, Iowa · implied b. ~1894 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Birth Month | Feb |
| Birth Year | 1894 |
| Father's Birthplace | New York |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Dubuque, Iowa
Son, age 15
Dubuque, Iowa · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | New York |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Dubuque, Iowa
Son, age 25
Dubuque, Iowa · implied b. ~1895 — 4 household members
| Surname | Martin |
| Given Name | Harold P |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | New York |
| Mother's Birthplace | Prussia Ger |
| Occupation | Delivery Boy |
| Industry | Department Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| 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 Martin across 3 US Census years (1900, 1910 and 1920) in Dubuque, Iowa, using XGBoost record linkage. Identified parents: father Moses Martin (~0.92 confidence) and mother Augusta Martin (~0.92 confidence) and mother Augusta Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Moses Martin
b. ~1855
Source father
● Household
· direct · ~0.92
Mother
Augusta Martin
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Augusta Martin
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Martin
Son · 1920 · age 25 · b. ~1895 · Iowa
★ You are viewing this record
Sibling
Florence Martin
Sibling · 1920 · age 36
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
1920 US Federal Census — Dubuque, Iowa
Open full size
1920 US Federal Census — Dubuque, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu488unit:0381)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louise C Zellig | 65 | Head | None | New York |
| 2 | Virginia M Zellig | 43 | daughter | Stenographer | Iowa |
| 3 | Alice Zellig | 39 | daughter | Proprietor | Iowa |
| 4 | Theodore A Tesar | 36 | Lodger | Commercial Salesman | Iowa |
| 5 | Walter J Wolf | 57 | Head | Contractor | Iowa |
| 6 | Annie T Wolf | 53 | wife | None | Luxemburg |
| 7 | Leo A Watters | 57 | Head | Vice President | Iowa |
| 8 | Katherine Watters | 44 | wife | None | Iowa |
| 9 | Lucille Watters | 54 | sister-in-law | None | Iowa |
| 10 | Mary T O'Rourke | 47 | Head | Stenographer | Iowa |
| 11 | Annie E O'Rourke | 45 | sister | None | Iowa |
| 12 | David J Conzett | 52 | Head | Stock Man | Iowa |
| 13 | Cora E Conzett | 48 | wife | None | Illinois |
| 14 | Hazel L Conzett | 27 | daughter | Stenographer | Iowa |
| 15 | Thelma M Conzett | 24 | daughter | Stenographer | Iowa |
| 16 | Eugene Frank | 61 | Head | Proprietor | Wurttemberg |
| 17 | Ora M Frank | 55 | wife | None | Wisconsin |
| 18 | Adeline C Thompson | 68 | Lodger | None | New York |
| 19 | Russell M Pfeiffer | 25 | Lodger | Proprietor | Iowa |
| 20 | Joseph Chaloupska | 54 | Head | Engineer | Iowa |
| 21 | Elizabeth Chaloupska | 45 | wife | None | England |
| 22 | Mabel Chaloupska | 29 | daughter | None | Iowa |
| 23 | Helen J Chaloupska | 23 | daughter | Teacher | Iowa |
| 24 | John G Frost | 78 | Head | None | New York |
| 25 | Ella E Frost | 40 | daughter | Bookkeeper | Minnesota |
| 26 | Agnes K Hardy | 52 | housekeeper | Housekeeper | New York |
| 27 | Vera Scholtz | 35 | Lodger | None | Wisconsin |
| 28 | Moses H Martin | 65 | Head | Proprietor | New York |
| 29 | Augusta Martin | 59 | wife | None | Prussia Ger |
| 30 | Florence A Martin | 36 | daughter | None | Iowa |
| 31 | Harold P Martin THIS PERSON | 25 | son | Delivery Boy | Iowa |
| 32 | Henry C Becker | 44 | Head | Agent | Iowa |
| 33 | Anna L Becker | 40 | wife | None | Iowa |
| 34 | William J Becker | 19 | son | Student | Iowa |
| 35 | Helen K Becker | 17 | daughter | None | Iowa |
| 36 | Marie K Becker | 13 | daughter | None | Iowa |
| 37 | Florence Becker | 7 | daughter | None | Iowa |
| 38 | Francis H Becker | 5 | son | None | Iowa |
| 39 | Eugene M Becker | 2 | son | None | Iowa |
| 40 | Harry L Stamp | 54 | Head | Commercial Salesman | Iowa |
| 41 | Teresa D Stamp | 45 | wife | None | Canada |
| 42 | Harriet A Stamp | 16 | daughter | None | Iowa |
| 43 | Kathryn A Stamp | 13 | daughter | None | Iowa |
| 44 | Ruth G Stamp | 9 | daughter | None | Iowa |
| 45 | Charles Colvin | 29 | Lodger | Civil Engineer | Virginia |
| 46 | Hazel B Colvin | 24 | Lodger | None | South Dakota |
| 47 | Henry Remus | 30 | Head | Proprietor | Iowa |
| 48 | Grace R Remus | 24 | wife | None | Iowa |
| 49 | Marian L Remus | 4 | daughter | None | Iowa |
| 50 | Walter P Backes | 21 | Head | Chauffeur | Iowa |
Pedigree Summary
Harold + 1 sibling
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 1920 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)