JL
Joseph Leonard — 1930 US Census Record
Model Tree available1930 United States Federal Census · Scott, Iowa
Our Model Tree links this Joseph Leonard across the 1920, 1930 and 1940 US Censuses in Scott, Iowa (XGBoost, ~Confirmed), with identified parents Michael & Agnes — first a son (b.~1909), then head of a 11-person household.
Age 21
b. ~1909
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Scott, Iowa |
| Surname | Leonard |
| Given Name | Joseph M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1909 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Virginia Leonard | Daughter | — | 17 | ~1913 |
| John Leonard | Son | — | 23 | ~1907 |
| Raymond Leonard | Son | — | 14 | ~1916 |
| Regina Leonard | Daughter | — | 5 | ~1925 |
| Kathleen Leonard | Daughter | — | 11 | ~1919 |
| Michael Leonard | Head | — | 60 | ~1870 |
| Mary Leonard | Daughter | — | 19 | ~1911 |
| Agnes Leonard | Spouse | — | 50 | ~1880 |
| Bernadine Leonard | Daughter | — | 9 | ~1921 |
| Frances Leonard | Daughter | — | 15 | ~1915 |
| Joseph Leonard | Son | — | 21 | ~1909 |
Census Appearances
1920
Scott, Iowa
Son, age 11
Scott, Iowa · implied b. ~1909 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Scott, Iowa
Son, age 21
Scott, Iowa · implied b. ~1909 — 11 household members
| Surname | Leonard |
| Given Name | Joseph M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Head, age 31
Scott-County, Iowa · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Joel |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Occupation | Laborer |
| Industry | W.P.A Road Construction |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 585 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Joseph Leonard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael Leonard (~0.92 confidence) and mother Agnes Leonard (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Leonard
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Agnes Leonard
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Leonard
Son · 1930 · age 21 · b. ~1909 · Iowa
★ You are viewing this record
Sibling
John Leonard
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Leonard
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Regina Leonard
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Leonard
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Leonard
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Leonard
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Leonard
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine Leonard
Sibling · 1930 · age 9
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 — Scott, Iowa
Open full size
1930 US Federal Census — Scott, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel682:0328)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Betty J Prochaska | 12 | Daughter | — | Illinois |
| 52 | Marilyn A Prochaska | 5 | Daughter | — | Iowa |
| 53 | Edwin M Prochaska | 3 | Son | — | Iowa |
| 54 | Elise Sollinghorst | 49 | Head | — | Germany |
| 55 | Frieda Sollinghorst | 43 | Sister | — | Iowa |
| 56 | Jerry C David | 49 | Head | Salesman | Pennsylvania |
| 57 | Jessie B David | 40 | Wife | — | Illinois |
| 58 | Mary A David | 21 | Daughter | — | Iowa |
| 59 | Milton C Fritze | 74 | Father-in-law | — | Pennsylvania |
| 60 | Robert G Cohn | 33 | Head | Driver | Iowa |
| 61 | Jennie H Cohn | 34 | Wife | Checker | Iowa |
| 62 | Vincent H Cohn | 17 | Son | Errand Boy | Iowa |
| 63 | Kenneth M Cohn | 16 | Son | Clerk | Iowa |
| 64 | Paul Rusch | 38 | Lodger | Proprietor | Illinois |
| 65 | Melvin Smith | 52 | Head | Laborer | Illinois |
| 66 | Elizabeth Smith | 52 | Wife | — | Iowa |
| 67 | Harvey A Smith | 22 | Son | — | Iowa |
| 68 | Dora Mustapha | 28 | Daughter | Clerk | Iowa |
| 69 | Dexter F Le Claire | 35 | Head | Contractor | Iowa |
| 70 | Bertha H Le Claire | 39 | Wife | — | Germany |
| 71 | Bertie F Le Claire | 12 | Son | — | Iowa |
| 72 | Ralph A Lancaster | 34 | Head | Clerk | Iowa |
| 73 | Nellie C Lancaster | 28 | Wife | — | Illinois |
| 74 | Gloria J Lancaster | 6 | Daughter | — | Iowa |
| 75 | Michael J Leonard | 60 | Head | Farmer | Iowa |
| 76 | Agnes Leonard | 50 | Wife | — | Iowa |
| 77 | John L Leonard | 23 | Son | Laborer | Iowa |
| 78 | Joseph M Leonard THIS PERSON | 21 | Son | — | Iowa |
| 79 | Mary A Leonard | 19 | Daughter | — | Iowa |
| 80 | Virginia K Leonard | 17 | Daughter | — | Iowa |
| 81 | Frances J Leonard | 15 | Daughter | — | Iowa |
| 82 | Raymond P Leonard | 14 | Son | — | Iowa |
| 83 | Kathleen H Leonard | 11 | Daughter | — | Iowa |
| 84 | Bernadine M Leonard | 9 | Daughter | — | Iowa |
| 85 | Regina A Leonard | 5 | Daughter | — | Iowa |
| 86 | John N Reimers | 74 | Head | Carpenter | Germany |
| 87 | Clara Reimers | 67 | Wife | — | Germany |
| 88 | Adele E Reimers | 37 | Daughter | — | Iowa |
| 89 | William Schneckloth | 72 | Brother-in-law | — | Germany |
| 90 | Ida M Johns | 66 | Head | — | Illinois |
| 91 | Minnie M Johns | 42 | Daughter | Teacher | Kansas |
| 92 | Elizabeth Taylor | 42 | Head | Saleslady | Illinois |
| 93 | John H Vasharsdal | 69 | Lodger | Conductor | Indiana |
| 94 | Effie R Vasharsdal | 52 | Lodger | — | Iowa |
| 95 | John L Walker | 62 | Head | Engineer | Iowa |
| 96 | Nellie C Walker | 34 | Daughter | — | Iowa |
| 97 | Lola C Walker | 22 | Daughter | — | Iowa |
| 98 | John D Walker | 14 | Son | — | Iowa |
| 99 | Mordica Sherwood | 44 | Head | Operator | Iowa |
| 100 | Mary Sherwood | 46 | Wife | — | Iowa |
Pedigree Summary
Joseph + 8 siblings
Gen 1 · 2 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)