HN
Harold Nelson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mclean, North Dakota
Our Model Tree links this Harold Nelson across the 1910, 1920 and 1930 US Censuses in Mclean, North Dakota (XGBoost, ~Confirmed), with identified parents Charles & Charley — first a son (b.~1910), then head of a 7-person household.
Age 20
b. ~1910
Male
Son
Born: North Dakota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mclean, North Dakota |
| Surname | Nelson |
| Given Name | Harold C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Lindsey Township |
| Est. Birth Year | ~1910 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Genevieve Nelson | Daughter | — | 15 | ~1915 |
| Charley Nelson | Head | — | 57 | ~1873 |
| Raymond Nelson | Son | — | 18 | ~1912 |
| Ronald Nelson | Son | — | 11 | ~1919 |
| Harold Nelson | Son | — | 20 | ~1910 |
| Carl Nelson | Son | — | 13 | ~1917 |
| Mary Nelson | Spouse | — | 53 | ~1877 |
Census Appearances
1910
Mclean, North …
Son, age
Mclean, North Dakota · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harold |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1920
Mclean, North …
Son, age 10
Mclean, North Dakota · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harold C. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Mclean, North …
Son, age 20
Mclean, North Dakota · implied b. ~1910 — 7 household members
| Surname | Nelson |
| Given Name | Harold C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Nelson across 3 US Census years (1910, 1920 and 1930) in Mclean, North Dakota, using XGBoost record linkage. Identified parents: father Charles Nelson (~0.92 confidence) and father Charley Nelson (~0.92 confidence) and father Chas Nelson (~0.92 confidence) and mother Mary Nelson (~0.92 confidence) and mother Mary Nelson (~0.92 confidence) and mother Mary Nelson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Nelson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Charley Nelson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Chas Nelson
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Mary Nelson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Nelson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Nelson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Nelson
Son · 1930 · age 20 · b. ~1910 · North Dakota
★ You are viewing this record
Sibling
Ronald Nelson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Nelson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Nelson
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Nelson
Sibling · 1930 · age 18
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 — Mclean, North Dakota
Open full size
1930 US Federal Census — Mclean, North Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1738unit:0680)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charley J Nelson | 57 | Head | Farmer | Minnesota |
| 2 | Mary C Nelson | 53 | Wife | — | Sweden |
| 3 | Harold C Nelson THIS PERSON | 20 | Son | — | North Dakota |
| 4 | Raymond V Nelson | 18 | Son | — | North Dakota |
| 5 | Genevieve L Nelson | 15 | Daughter | — | North Dakota |
| 6 | Carl J Nelson | 13 | Son | — | North Dakota |
| 7 | Ronald E Nelson | 11 | Son | — | North Dakota |
| 8 | John Aldinger | 46 | Head | Farmer | Romania |
| 9 | Freda Aldinger | 40 | Wife | — | Romania |
| 10 | Alsea Aldinger | 18 | Daughter | — | North Dakota |
| 11 | Otto Aldinger | 16 | Son | — | North Dakota |
| 12 | Fred J Aldinger | 14 | Son | — | North Dakota |
| 13 | Helen Aldinger | 12 | Daughter | — | North Dakota |
| 14 | Elec Aldinger | 10 | Son | — | North Dakota |
| 15 | Evelyn K Aldinger | 8 | Daughter | — | North Dakota |
| 16 | Irene Aldinger | 5 | Daughter | — | North Dakota |
| 17 | Jack E Aldinger | 3 | Son | — | North Dakota |
| 18 | Spencer F Norden | 34 | Head | Farmer | Minnesota |
| 19 | Mabel A Norden | 29 | Wife | — | Wisconsin |
| 20 | Grace J Norden | 5 | Daughter | — | North Dakota |
| 21 | Gloria M Norden | 4 | Daughter | — | North Dakota |
| 22 | Philip S Norden | 2 | Son | — | North Dakota |
| 23 | Viola E Olson | 22 | Boarder | Teacher | North Dakota |
| 24 | Norman Swanson | 17 | Laborer | Farm Laborer | North Dakota |
| 25 | Frank Krase | 41 | Head | Farmer | Minnesota |
| 26 | Jennie G Krase | 30 | Wife | — | Illinois |
| 27 | Clinton F Krase | 15 | Son | — | Minnesota |
| 28 | Gilbert O Krase | 13 | Son | — | North Dakota |
| 29 | Arthur E Doak | 47 | Head | Farm Laborer | Illinois |
| 30 | Edna I Doak | 35 | Wife | — | Iowa |
| 31 | Wayne L Doak | 9 | Son | — | North Dakota |
| 32 | Edwin E Doak | 8 | Son | — | North Dakota |
| 33 | Prabelle J Doak | 7 | Daughter | — | North Dakota |
| 34 | Mary L Doak | 5 | Daughter | — | North Dakota |
| 35 | Edith G Doak | 4 | Daughter | — | North Dakota |
| 36 | Esther M Doak | 3 | Daughter | — | North Dakota |
| 37 | Orvil M Doak | 1 | Son | — | North Dakota |
| 38 | Otto E Hagberg | 40 | Head | Farmer | Minnesota |
| 39 | Florence E Hagberg | 38 | Wife | — | Minnesota |
| 40 | Erick Erickson | 50 | Laborer | Farm Laborer | United States |
| 41 | Charley C Sandberg | 52 | Head | Farmer | United States |
| 42 | Edna Sandberg | 21 | Daughter | — | North Dakota |
| 43 | Wallace J Sandberg | 19 | Son | — | North Dakota |
| 44 | Arabelle J Sandberg | 8 | Daughter | — | North Dakota |
| 45 | Emma Taylor | 35 | Servant | Servant | North Dakota |
| 46 | Jacob Mehlhoff | 35 | Head | Laborer | North Dakota |
| 47 | Amelia Mehlhoff | 29 | Wife | — | North Dakota |
| 48 | Alexandra Mehlhoff | 10 | Son | — | North Dakota |
| 49 | Edmund Mehlhoff | 9 | Son | — | North Dakota |
| 50 | Alma Mehlhoff | 8 | Daughter | — | North Dakota |
Pedigree Summary
Harold + 4 siblings
Gen 1 · 6 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)