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Harold Nelson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Marshall, Minnesota
Our Model Tree links this Harold Nelson across the 1910, 1920 and 1930 US Censuses in Marshall, Minnesota (XGBoost, ~Confirmed), with identified parents Andrew & Andrew — first a son (b.~1910), then head of a 6-person household.
Age 20
b. ~1910
Male
Son
Born: Minnesota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Marshall, Minnesota |
| Surname | Nelson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Additional Details | |
| Occupation | Laborer |
| Industry | Hall |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | Argyle Village |
| 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Mildred Nelson | Daughter | — | 18 | ~1912 |
| Agnes Nelson | Daughter | — | 27 | ~1903 |
| Andrew Nelson | Head | — | 59 | ~1871 |
| Harold Nelson | Son | — | 20 | ~1910 |
| Arthur Nelson | Son | — | 25 | ~1905 |
| Carin Nelson | Spouse | — | 59 | ~1871 |
Census Appearances
1910
Marshall, Minnesota
Son, age
Marshall, Minnesota · implied b. ~1910 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harold J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Marshall, Minnesota
Son, age 10
Marshall, Minnesota · implied b. ~1910 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harold S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Marshall, Minnesota
Son, age 20
Marshall, Minnesota · implied b. ~1910 — 6 household members
| Surname | Nelson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Occupation | Laborer |
| Industry | Hall |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Marshall, Minnesota, using XGBoost record linkage. Identified parents: father Andrew Nelson (~0.92 confidence) and father Andrew Nelson (~0.92 confidence) and father Andrew Nelson (~0.92 confidence) and mother Carin Nelson (~0.92 confidence) and mother Kari Nelson (~0.92 confidence) and mother Rosa Nelson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Nelson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Andrew Nelson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Andrew Nelson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Carin Nelson
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Kari Nelson
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Rosa Nelson
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Nelson
Son · 1930 · age 20 · b. ~1910 · Minnesota
★ You are viewing this record
Sibling
Mildred Nelson
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Nelson
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Nelson
Sibling · 1930 · age 27
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 — Marshall, Minnesota
Open full size
1930 US Federal Census — Marshall, Minnesota
Page Contents
50 people indexed on this census page (ia:1930:minnesotacensus00reel1106:0153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Irvine Roloff | 37 | Head | Auditor | Minnesota |
| 2 | Bernice H Roloff | 30 | Wife | — | Minnesota |
| 3 | Helen Roloff | 7 | Daughter | — | Minnesota |
| 4 | John H Roloff | 0 | Son | — | Minnesota |
| 5 | Floyd Daniels | 38 | Head | Manager | South Dakota |
| 6 | Mary H Daniels | 36 | Wife | — | Canada |
| 7 | Laurine L Daniels | 7 | Son | — | Minnesota |
| 8 | John Launderville | 60 | Head | Farmer | Canada French |
| 9 | Matilda Launderville | 64 | Wife | — | Canada French |
| 10 | Tenes Launderville | 58 | Brother | — | Canada French |
| 11 | Celina Launderville | 52 | Sister | — | Canada French |
| 12 | Albert Anderson | 29 | Head | Mechanic | Minnesota |
| 13 | Della Anderson | 26 | Wife | — | Minnesota |
| 14 | Lois M Anderson | 1 | Daughter | — | Minnesota |
| 15 | Beda Peterson | 32 | Lodger | Teacher | Minnesota |
| 16 | Sarah Hunt | 77 | Head | — | Illinois |
| 17 | Alexander Hunt | 54 | Son | Laborer | Iowa |
| 18 | Carl G Peterson | 57 | Head | Laborer | Sweden |
| 19 | Margit Peterson | 54 | Wife | — | Norway |
| 20 | Dorothy Peterson | 15 | Daughter | — | Minnesota |
| 21 | Walter Peterson | 8 | Son | — | Minnesota |
| 22 | Milton Peterson | 20 | Boarder | Laborer | Minnesota |
| 23 | Jacob Lund | 64 | Head | Laborer | Sweden |
| 24 | August Anderson | 70 | Head | — | Sweden |
| 25 | Ruby Anderson | 36 | Daughter | Teacher | Minnesota |
| 26 | David Mack | 47 | Head | — | Wisconsin |
| 27 | Emma C Mack | 50 | Sister | — | Wisconsin |
| 28 | James Isaacson | 47 | Head | Laborer | Minnesota |
| 29 | Ella Isaacson | 46 | Wife | — | Minnesota |
| 30 | Mildred Isaacson | 22 | Daughter | Servant | Minnesota |
| 31 | Lawrence Isaacson | 19 | Son | — | Minnesota |
| 32 | Lester M Isaacson | 17 | Son | — | Minnesota |
| 33 | Russell Isaacson | 10 | Son | — | Minnesota |
| 34 | Harley Isaacson | 6 | Son | — | Minnesota |
| 35 | Sally Isaacson | 4 | Daughter | — | Minnesota |
| 36 | Erick Thorsell | 71 | Head | — | Sweden |
| 37 | Ema Thorsell | 74 | Wife | — | Sweden |
| 38 | Martina Humerback | 58 | Head | — | Norway |
| 39 | Henry Humerback | 25 | Son | Mechanic | Minnesota |
| 40 | Charles Humerback | 20 | Son | — | Minnesota |
| 41 | Andrew Nelson | 59 | Head | Laborer | Sweden |
| 42 | Carin M Nelson | 59 | Wife | — | Sweden |
| 43 | Agnes M Nelson | 27 | Daughter | Bookkeeper | Minnesota |
| 44 | Arthur M Nelson | 25 | Son | Laborer | Minnesota |
| 45 | Harold Nelson THIS PERSON | 20 | Son | Laborer | Minnesota |
| 46 | Mildred M Nelson | 18 | Daughter | — | Minnesota |
| 47 | Arthur Nichols | 26 | Head | Laborer | Minnesota |
| 48 | Margaret Nichols | 23 | Wife | — | Minnesota |
| 49 | Dorothy Nichols | 3 | Daughter | — | Minnesota |
| 50 | Violetta Nichols | 1 | Daughter | — | Minnesota |
Pedigree Summary
Harold + 3 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)