JA
John Adams — 1930 US Census Record
Model Tree available1930 United States Federal Census · Delaware, Iowa
Our Model Tree links this John Adams across the 1910, 1920 and 1930 US Censuses in Delaware, Iowa (XGBoost, ~Confirmed), with identified parents S & Mary — first a son (b.~1863), then head of a 3-person household.
Age 67
b. ~1863
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Delaware, Iowa |
| Surname | Adams |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Banker |
| Industry | Bank Dept |
| Class of Worker | E |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Banker |
| Township / Ward | Colesburg Town |
| Est. Birth Year | ~1863 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Katie Radcliff | Daughter | — | 58 | ~1872 |
| Mary Adams | Head | — | 89 | ~1841 |
| John Adams | Son | — | 67 | ~1863 |
Census Appearances
1910
Delaware, Iowa
Son, age 47
Delaware, Iowa · implied b. ~1863 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Occupation | Barber |
| Industry | Own shop |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Delaware, Iowa
Son, age 56
Delaware, Iowa · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Occupation | Broker |
| Industry | Bank Stock |
| Class of Worker | E |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Delaware, Iowa
Son, age 67
Delaware, Iowa · implied b. ~1863 — 3 household members
| Surname | Adams |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Occupation | Banker |
| Industry | Bank Dept |
| Class of Worker | E |
| 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 John Adams across 3 US Census years (1910, 1920 and 1930) in Delaware, Iowa, using XGBoost record linkage. Identified parents: father S Adams (~0.92 confidence) and mother Mary Adams (~0.92 confidence) and mother Mary Adams (~0.92 confidence) and mother Mary Adams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
S Adams
b. ~1837
Source father
● Household
· direct · ~0.92
Mother
Mary Adams
b. ~1841
Source mother
● Household
· direct · ~0.92
Mother
Mary Adams
b. ~1842
Source mother
● Household
· direct · ~0.92
Mother
Mary Adams
b. ~1841
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Adams
Son · 1930 · age 67 · b. ~1863 · Iowa
★ You are viewing this record
Sibling
Katie Radcliff
Sibling · 1930 · age 58
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 — Delaware, Iowa
Open full size
1930 US Federal Census — Delaware, Iowa
Page Contents
49 people indexed on this census page (ia:1930:iowacensus00reel652:0403)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Schrunk | 58 | Head | Clerk | Iowa |
| 52 | Leora Schrunk | 53 | Wife | — | Iowa |
| 53 | Paul Schrunk | 20 | Son | Laborer | Iowa |
| 54 | Bertha Schrunk | 17 | Daughter | — | Iowa |
| 55 | Leo Schrunk | 11 | Son | — | Iowa |
| 56 | Harley Barnhart | 53 | Head | Laborer | Iowa |
| 57 | Flora Barnhart | 58 | Wife | — | Iowa |
| 58 | Dorothy Barnhart | 18 | Adopted Daughter | — | Iowa |
| 59 | Minerva Rich | 61 | Head | — | Iowa |
| 60 | Cora Rich | 31 | Daughter | Postmaster | Iowa |
| 61 | Frank Rich | 25 | Son | Repairman | Iowa |
| 62 | Herman Brockmeyer | 77 | Head | — | Germany |
| 63 | Matilda Brockmeyer | 74 | Wife | — | Iowa |
| 64 | Clauf Coon | 49 | Head | Merchant | Iowa |
| 65 | Bertha Coon | 53 | Wife | — | Iowa |
| 66 | Iola Coon | 17 | Daughter | — | Iowa |
| 67 | Anne Desselman | 63 | Head | — | Wisconsin |
| 68 | Lottie Desselman | 33 | Daughter | — | Wisconsin |
| 69 | Mary Desselman | 24 | Daughter | — | Iowa |
| 70 | Mary Ann Adams | 89 | Head | — | Illinois |
| 71 | Katie Radcliff | 58 | Daughter | — | Iowa |
| 72 | John Adams THIS PERSON | 67 | Son | Banker | Iowa |
| 73 | Martin E. Dittmer | 67 | Head | Doctor | Iowa |
| 74 | Virginia B. Dittmer | 67 | Wife | — | Indiana |
| 75 | Howard Meyers | 15 | Boarder | — | Iowa |
| 76 | George Neerman | 57 | Head | Carpenter | Ohio |
| 77 | Anne Neerman | 56 | Wife | — | Germany |
| 78 | Russell Rogers | 14 | Grandson | — | Iowa |
| 79 | Lynn Hasey | 74 | Head | — | Iowa |
| 80 | Stella Theis | 40 | Head | — | Iowa |
| 81 | Wilbur Theis | 16 | Son | — | Iowa |
| 82 | Sophia Metzer | 66 | Head | — | Germany |
| 83 | Alice Metzer | 30 | Daughter | Carpenter | Iowa |
| 84 | Herman Kelly | 43 | Head | Mail Carrier | Iowa |
| 85 | Abel Kelly | 32 | Wife | — | Iowa |
| 86 | Elsie Kelly | 13 | Daughter | — | Iowa |
| 87 | Donald Kelly | 12 | Son | — | Iowa |
| 88 | Ada Kelly | 8 | Daughter | — | Iowa |
| 89 | George Nethercut | 44 | Head | Minister | Missouri |
| 90 | Lillian Nethercut | 41 | Wife | — | Pennsylvania |
| 91 | Milton Nethercut | 16 | Son | — | Michigan |
| 92 | Howard Nethercut | 9 | Son | — | Wisconsin |
| 93 | Harold Nethercut | 6 | Son | — | Iowa |
| 94 | Emil Souch | 55 | Head | Farmer | Iowa |
| 95 | Louie Souch | 58 | Wife | — | Iowa |
| 96 | Willie Grant | 42 | Head | Farmer | Iowa |
| 97 | Bessie Robison | 62 | Sister | — | Iowa |
| 98 | Frank Aul | 58 | Boarder | — | Iowa |
| 99 | Clayton Aul | 11 | Nephew | — | Iowa |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)