JS
John Summers — 1930 US Census Record
Model Tree available1930 United States Federal Census · Marion, Indiana
Our Model Tree links this John Summers across the 1910, 1920 and 1930 US Censuses in Marion, Indiana (XGBoost, ~Confirmed), with identified parents John & Eva — first a son (b.~1908), then head of a 8-person household.
Age 22
b. ~1908
Male
Son
Born: Indiana
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Marion, Indiana |
| Surname | Summers |
| Given Name | John B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Supply Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Mechanic |
| Township / Ward | Indianapolis City |
| Est. Birth Year | ~1908 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Irmajean Summers | Daughter | — | 20 | ~1910 |
| John Summers | Head | — | 45 | ~1885 |
| Clarence Hornberger | Other | — | 32 | ~1898 |
| Grace Summers | Other | — | 18 | ~1912 |
| Phyllis Summers | Other | — | 3 | ~1927 |
| John Summers | Son | — | 22 | ~1908 |
| Ruth Hornberger | Spouse | — | 27 | ~1903 |
| Eva Summers | Spouse | — | 47 | ~1883 |
Census Appearances
1910
Marion, Indiana
Son, age 2
Marion, Indiana · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sommers |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Marion, Indiana
Son, age 12
Marion, Indiana · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Summers |
| Given Name | John B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 22
Marion, Indiana · implied b. ~1908 — 8 household members
| Surname | Summers |
| Given Name | John B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Mechanic |
| Industry | Supply Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Summers across 3 US Census years (1910, 1920 and 1930) in Marion, Indiana, using XGBoost record linkage. Identified parents: father John Summers (~0.92 confidence) and mother Eva Summers (~0.92 confidence) and mother Grace Sommers (~0.92 confidence) and father John Sommers (~0.92 confidence) and father John Summers (~0.92 confidence) and mother Grace Summers (~0.92 confidence) and mother Ruth Hornberger (~0.60 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.87
Father
John Summers
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Eva Summers
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Grace Sommers
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
John Sommers
b. ~1883
Source father
● Household
· direct · ~0.92
Father
John Summers
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Grace Summers
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Ruth Hornberger
b. ~1903
Source mother
● Household
· direct · ~0.6
This person
Anchor record
John Summers
Son · 1930 · age 22 · b. ~1908 · Indiana
★ You are viewing this record
Sibling
Irmajean Summers
Sibling · 1930 · age 20
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 — Marion, Indiana
Open full size
1930 US Federal Census — Marion, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel612rs:0820)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Geneva M Beltz | 36 | Sister | Folder | Indiana |
| 52 | Phyllis Beltz | 8 | Daughter | — | Indiana |
| 53 | Rosemary E Beltz | 6 | Daughter | — | Indiana |
| 54 | Walter A Sienke | 27 | Head | Pressman | Minnesota |
| 55 | Clara Sienke | 23 | Wife | Forelady | Minnesota |
| 56 | Vernon F Harvey | 25 | Head | Machinist | Indiana |
| 57 | Camille Harvey | 23 | Wife | — | Indiana |
| 58 | Vernon J Harvey | 5 | Son | — | Indiana |
| 59 | Edward F Harvey | 3 | Son | — | Indiana |
| 60 | John H Harvey | 2 | Son | — | Indiana |
| 61 | Ida M Schmidt | 57 | Head | Inspector | Indiana |
| 62 | Mary Schmidt | 50 | Sister | — | Indiana |
| 63 | Otto C Schmidt | 46 | Brother | Shipping Clerk | Indiana |
| 64 | John P Murray | 29 | Head | Supervisor | Illinois |
| 65 | Elizabeth Murray | 30 | Wife | — | Indiana |
| 66 | John R Murray | 7 | Son | — | Indiana |
| 67 | Foster Thomas | 24 | Head | Teacher | Indiana |
| 68 | May Thomas | 23 | Wife | Seamer | Indiana |
| 69 | George E Barrett | 34 | Head | Manager | Indiana |
| 70 | Avis A Barrett | 27 | Wife | — | Michigan |
| 71 | John T Summers | 45 | Head | Mechanic | Indiana |
| 72 | Eva Summers | 47 | Wife | — | Indiana |
| 73 | John B Summers THIS PERSON | 22 | Son | Mechanic | Indiana |
| 74 | Grace Summers | 18 | Daughter-in-law | — | Indiana |
| 75 | Irmajean Summers | 20 | Daughter | File Clerk | Indiana |
| 76 | Clarence Hornberger | 32 | Son-in-law | Salesman | Indiana |
| 77 | Ruth Hornberger | 27 | Wife | Clerk | Indiana |
| 78 | Phyllis Summers | 3 | Grand-daughter | — | Indiana |
| 79 | Harold W Brady | 32 | Head | Salesman | Indiana |
| 80 | Frances M Brady | 22 | Wife | Teacher | Indiana |
| 81 | Charles G Boswell | 35 | Head | Fireman | Indiana |
| 82 | Mamie A Boswell | 31 | Wife | — | Indiana |
| 83 | Charles Boswell | 12 | Son | — | Indiana |
| 84 | Richard B Boswell | 7 | Son | — | Indiana |
| 85 | Peter A Farner | 60 | Head | Cashier | Illinois |
| 86 | Minnie M Farner | 61 | Wife | — | Ohio |
| 87 | Charles F Sprankle | 29 | Head | Salesman | Indiana |
| 88 | Virginia Sprankle | 29 | Wife | — | Illinois |
| 89 | Charles R Sprankle | 2 | Son | — | Indiana |
| 90 | David Showalter | 32 | Head | Body Builder | Indiana |
| 91 | Florence E Showalter | 30 | Wife | — | Indiana |
| 92 | Vivian Showalter | 8 | Daughter | — | Indiana |
| 93 | Warren A Showalter | 5 | Son | — | Indiana |
| 94 | Jacob H Leffler | 38 | Head | Manager | Kentucky |
| 95 | Dorothy Leffler | 18 | Wife | — | Indiana |
| 96 | Jacob H Leffler | 58 | Father | Manager | Kentucky |
| 97 | Patricia Leffler | 0 | Daughter | — | Indiana |
| 98 | Charles M Kelly | 34 | Head | Salesman | Indiana |
| 99 | Bernice C Kelly | 32 | Wife | — | Indiana |
| 100 | Dorothy J Kelly | 4 | Daughter | — | Indiana |
Pedigree Summary
John + 1 sibling
Gen 1 · 7 parents
~0.87
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)