AJ
Alvin Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · St Louis, Minnesota
Our Model Tree links this Alvin Johnson across the 1910, 1920 and 1930 US Censuses in St Louis, Minnesota (XGBoost, ~Confirmed), with identified parents Alfred & Alfred — first a son (b.~1904), then head of a 6-person household.
Age 26
b. ~1904
Male
Son
Born: Minnesota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | St Louis, Minnesota |
| Surname | Johnson |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Teacher |
| Township / Ward | Duluth 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Alvin | Age | Birth yr |
|---|---|---|---|---|
| Andrew Johnson | Head | — | 62 | ~1868 |
| Clarence Johnson | Son | — | 22 | ~1908 |
| Alma Johnson | Spouse | — | 57 | ~1873 |
| Elsie Johnson | Daughter | — | 24 | ~1906 |
| Alvin Johnson | Son | — | 26 | ~1904 |
| Margaret Johnson | Daughter | — | 18 | ~1912 |
Census Appearances
1910
St Louis, …
Son, age 6
St Louis, Minnesota · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Speaks English | English |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
St Louis, …
Son, age 16
St Louis, Minnesota · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
St Louis, …
Son, age 26
St Louis, Minnesota · implied b. ~1904 — 6 household members
| Surname | Johnson |
| Given Name | Alvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Alvin Johnson across 3 US Census years (1910, 1920 and 1930) in St Louis, Minnesota, using XGBoost record linkage. Identified parents: father Alfred Johnson (~0.92 confidence) and father Alfred Johnson (~0.92 confidence) and father Andrew Johnson (~0.92 confidence) and mother Alma Johnson (~0.92 confidence) and mother Hanna Johnson (~0.92 confidence) and mother Hulda Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfred Johnson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Alfred Johnson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Andrew Johnson
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Alma Johnson
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Hanna Johnson
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Hulda Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alvin Johnson
Son · 1930 · age 26 · b. ~1904 · Minnesota
★ You are viewing this record
Sibling
Elsie Johnson
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Johnson
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Johnson
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 — St Louis, Minnesota
Open full size
1930 US Federal Census — St Louis, Minnesota
Page Contents
50 people indexed on this census page (ia:1930:minnesotacensus00reel1127:1005)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joyce Johnson | 10 | Daughter | — | Minnesota |
| 52 | Andrew Johnson | 62 | Head | Inspector | Sweden |
| 53 | Alma Johnson | 57 | Wife | — | Sweden |
| 54 | Alvin Johnson THIS PERSON | 26 | Son | Teacher | Minnesota |
| 55 | Elsie Johnson | 24 | Daughter | Teacher | Minnesota |
| 56 | Clarence Johnson | 22 | Son | — | Minnesota |
| 57 | Margaret Johnson | 18 | Daughter | — | Minnesota |
| 58 | William Starr | 46 | Head | Engineer | Minnesota |
| 59 | Mary Starr | 56 | Wife | — | Minnesota |
| 60 | James M Starr | 55 | Brother | Watchman | Minnesota |
| 61 | Frances Bakeman | 69 | Head | Rooming House | Ireland |
| 62 | John Maddock | 66 | Boarder | Miner | England |
| 63 | Frank Jones | 70 | Boarder | Com-Labor | Austria |
| 64 | Sam Cruise | 55 | Boarder | Com-Labor | Ireland |
| 65 | Peter Mourin | 39 | Head | Crusherman | Jugoslavia |
| 66 | Mary Mourin | 37 | Wife | — | Minnesota |
| 67 | Helen Mourin | 9 | Daughter | — | Minnesota |
| 68 | Ernest G Bickley | 31 | Head | Manager | Michigan |
| 69 | Irene Bickley | 32 | Wife | — | Wisconsin |
| 70 | Jean Bickley | 2 | Daughter | — | Minnesota |
| 71 | James Bickley | 0 | Son | — | Minnesota |
| 72 | Ben Chiodini | 47 | Head | Truck Driver | Italy |
| 73 | Ida Chiodini | 33 | Wife | — | Italy |
| 74 | Primus J Skumotz | 34 | Head | Steamfitter | Minnesota |
| 75 | Rosalie Skumotz | 30 | Wife | — | Michigan |
| 76 | Delores Skumotz | 10 | Daughter | — | Minnesota |
| 77 | Lynette Skumotz | 8 | Daughter | — | Minnesota |
| 78 | John G Isola | 27 | Head | Miner | Minnesota |
| 79 | Sadie M Isola | 32 | Wife | — | Minnesota |
| 80 | Robin Isola | 3 | Son | — | Minnesota |
| 81 | Lois S Isola | 1 | Daughter | — | Minnesota |
| 82 | Earl H Isola | 0 | Son | — | Minnesota |
| 83 | Jenny A Brown | 49 | Head | Seamstress | Pennsylvania |
| 84 | John L Brown | 19 | Son | Driver | Wisconsin |
| 85 | Mat Danik | 40 | Head | Miner | Jugoslavia |
| 86 | Mary Danik | 37 | Wife | — | Jugoslavia |
| 87 | Frank Danik | 12 | Son | — | Minnesota |
| 88 | Mary Danik | 9 | Daughter | — | Minnesota |
| 89 | Frances Danik | 7 | Daughter | — | Minnesota |
| 90 | Edward Danik | 3 | Son | — | Minnesota |
| 91 | John J Klobucar | 37 | Head | Miner | Croatia |
| 92 | Mary Klobucar | 40 | Wife | — | Croatia |
| 93 | James Klobucar | 5 | Son | — | Minnesota |
| 94 | Nick Ceyance | 20 | Stepson | Miner | Minnesota |
| 95 | Mike Ceyance | 17 | Stepson | Driver | Minnesota |
| 96 | Anna Ceyance | 16 | Daughter | — | Minnesota |
| 97 | Mary Ceyance | 13 | Daughter | — | Minnesota |
| 98 | John Pietri | 47 | Head | Com Labor | France |
| 99 | Catherine Pietri | 56 | Wife | — | France |
| 100 | Vincent Pietri | 15 | Son | — | France |
Pedigree Summary
Alvin + 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)