MJ
May Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Shelby, Iowa
Our Model Tree links this May Johnson across the 1920 and 1930 US Censuses in Shelby, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 5-person household.
Age 36
b. ~1894
Female
Spouse
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Shelby, Iowa |
| Surname | Johnson |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 16 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Northern Ireland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Jackson Township |
| Est. Birth Year | ~1894 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to May | Age | Birth yr |
|---|---|---|---|---|
| Wodmen Johnson | Head | — | 41 | ~1889 |
| Herman Johnson | Son | — | 14 | ~1916 |
| Everit Johnson | Son | — | 19 | ~1911 |
| Gaylord Johnson | Son | — | 11 | ~1919 |
| May Johnson | Spouse | — | 36 | ~1894 |
Census Appearances
1920
Shelby, Iowa
Spouse, age 26
Shelby, Iowa · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Shelby, Iowa
Spouse, age 36
Shelby, Iowa · implied b. ~1894 — 5 household members
| Surname | Johnson |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 16 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Northern Ireland |
| Occupation | none |
| 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 May Johnson across 2 US Census years (1920 and 1930) in Shelby, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
May Johnson
Spouse · 1930 · age 36 · b. ~1894 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Shelby, Iowa
Open full size
1930 US Federal Census — Shelby, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel682:0719)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wodmen Johnson | 41 | Head | Farmer | Iowa |
| 2 | May Johnson THIS PERSON | 36 | Wife | None | Iowa |
| 3 | Everit B. Johnson | 19 | Son | None | Iowa |
| 4 | Herman L. Johnson | 14 | Son | None | Iowa |
| 5 | Gaylord T. Johnson | 11 | Son | None | Iowa |
| 6 | Andrew Foldberg | 43 | Head | Commercial Traveler | Iowa |
| 7 | Lora Foldberg | 38 | Wife | None | Iowa |
| 8 | Verlee M. Foldberg | 3 | Daughter | None | Iowa |
| 9 | Karen Olesen | 72 | Head | None | Denmark |
| 10 | Mary K. Rasmussen | 84 | Head | None | Denmark |
| 11 | Emilie Rasmussen | 44 | Daughter | None | Iowa |
| 12 | Rasmus Brodersen | 83 | Head | None | Denmark |
| 13 | Mary Brodersen | 69 | Wife | None | Denmark |
| 14 | Mathias Sorensen | 82 | Head | None | Denmark |
| 15 | Marie Sorensen | 81 | Wife | None | Denmark |
| 16 | Earl A. Walters | 27 | Head | Clerk | Iowa |
| 17 | Marie C. Walters | 25 | Wife | None | Iowa |
| 18 | Kenneth J. Walters | 3 | Son | None | Iowa |
| 19 | Helen V. Walters | 1 | Daughter | None | Iowa |
| 20 | Stanley Oaks | 28 | Head | Auto Mechanic | Illinois |
| 21 | Lillian A. Oaks | 22 | Wife | None | Virginia |
| 22 | Raymond V. Oaks | 3 | Son | None | Iowa |
| 23 | Dorothy E. Oaks | 1 | Daughter | None | Iowa |
| 24 | Chris Foldberg | 67 | Head | None | Denmark |
| 25 | Marie K. Foldberg | 72 | Wife | None | Denmark |
| 26 | Henry Foldberg | 32 | Son | None | Iowa |
| 27 | Eskild S. Petersen | 26 | Head | Carpenter | Denmark |
| 28 | Grace E. Petersen | 25 | Wife | None | Iowa |
| 29 | Shirley L. Petersen | 2 | Daughter | None | Iowa |
| 30 | Lyle G. Petersen | 0 | Son | None | Iowa |
| 31 | Peter L. Petersen | 46 | Uncle | None | Denmark |
| 32 | Karen Petersen | 77 | Head | None | Denmark |
| 33 | Bernhard Hansen | 35 | Head | Plumber | Denmark |
| 34 | Petra Hansen | 24 | Wife | None | Denmark |
| 35 | Norman V. Hansen | 0 | Son | None | Iowa |
| 36 | Cora T. Phulor | 54 | Head | Operator | Virginia |
| 37 | Elizabeth M. Phulor | 17 | Daughter | Operator | Virginia |
| 38 | Dina Pedersen | 77 | Head | None | Denmark |
| 39 | Fred Hjorth | 48 | Head | Operator | Denmark |
| 40 | James Norgaard | 53 | Head | Merchant | Denmark |
| 41 | Katie Norgaard | 51 | Wife | None | Denmark |
| 42 | Harvey Norgaard | 19 | Son | Clerk | Iowa |
| 43 | Mette M. Lund | 76 | Head | None | Denmark |
| 44 | Hans H. Jorgensen | 61 | Head | Farmer | Denmark |
| 45 | Christine M. Jorgensen | 64 | Wife | None | Denmark |
| 46 | Carl M. Jacobsen | 26 | Head | Farmer | Iowa |
| 47 | Anita Jacobsen | 22 | Wife | None | Iowa |
| 48 | Elaine J. Jacobsen | 0 | Daughter | None | Iowa |
| 49 | Harry E. Nelson | 20 | Head | Farmer | Iowa |
| 50 | Vernie L. Nelson | 20 | Wife | None | 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)