JL
John Lyons — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Dubuque, Iowa
Our Model Tree links this John Lyons across the 1930 and 1940 US Censuses in Dubuque, Iowa (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 11-person household.
Age 2
b. ~1928
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Dubuque, Iowa |
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Dubuque City |
| Est. Birth Year | ~1928 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Gertie Lyons | Daughter | — | 11 | ~1919 |
| Virginia Lyons | Daughter | — | 6 | ~1924 |
| Margaret Lyons | Daughter | — | 12 | ~1918 |
| Mary Lyons | Daughter | — | 9 | ~1921 |
| Helen Lyons | Daughter | — | 7 | ~1923 |
| Edward Lyons | Head | — | 39 | ~1891 |
| James Lyons | Son | — | ~1930 | |
| Robert Lyons | Son | — | 4 | ~1926 |
| Edward Lyons | Son | — | 13 | ~1917 |
| John Lyons | Son | — | 2 | ~1928 |
| Susan Lyons | Spouse | — | 37 | ~1893 |
Census Appearances
1930
Dubuque, Iowa
Son, age 2
Dubuque, Iowa · implied b. ~1928 — 11 household members
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Dubuque-County, Iowa
Son, age 13
Dubuque-County, Iowa · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Fairbanks |
| 1935 Residence (County) | Buchanan |
| Highest Grade | 6 |
| 1935 Residence | Iowa |
| 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 Lyons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Lyons
Son · 1930 · age 2 · b. ~1928 · Iowa
★ You are viewing this record
Sibling
Mary Lyons
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Lyons
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Lyons
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Lyons
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Lyons
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Lyons
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Lyons
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertie Lyons
Sibling · 1930 · age 11
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 — Dubuque, Iowa
Open full size
1930 US Federal Census — Dubuque, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel654:0393)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Lyons | 39 | Head | Proprietor | Iowa |
| 2 | Susan Lyons | 37 | Wife | — | Iowa |
| 3 | Edward Lyons | 13 | Son | — | Iowa |
| 4 | Margaret Lyons | 12 | Daughter | — | Iowa |
| 5 | Gertie Lyons | 11 | Daughter | — | Iowa |
| 6 | Mary Lyons | 9 | Daughter | — | Iowa |
| 7 | Helen Lyons | 7 | Daughter | — | Iowa |
| 8 | Virginia Lyons | 6 | Daughter | — | Iowa |
| 9 | Robert Lyons | 4 | Son | — | Iowa |
| 10 | John Lyons THIS PERSON | 2 | Son | — | Iowa |
| 11 | James Lyons | 0 | Son | — | Iowa |
| 12 | Nicholas Wester | 25 | Head | Labourer | Holland |
| 13 | Anna Wester | 44 | Wife | — | Iowa |
| 14 | Verne Spangler | 15 | Stepson | Laborer | Iowa |
| 15 | John Flahill | 50 | Head | Teamster | Iowa |
| 16 | Mary Flahill | 32 | Wife | — | Iowa |
| 17 | Alvin Flahill | 11 | Son | — | Iowa |
| 18 | Frances Flahill | 11 | Daughter | — | Iowa |
| 19 | Bernard Detten | 64 | Father-in-law | — | Iowa |
| 20 | John Fetsch | 43 | Head | Operator | United States |
| 21 | Mary Fetsch | 44 | Wife | — | Switzerland |
| 22 | Pearl Louise Fetsch | 11 | Daughter | — | Iowa |
| 23 | Herman Leute | 30 | Head | Coremaker | Iowa |
| 24 | Rose Leute | 24 | Wife | — | Iowa |
| 25 | Leo Greenwood | 8 | Stepson | — | Iowa |
| 26 | Violet Greenwood | 7 | Stepdaughter | — | Iowa |
| 27 | Rosemary Leute | 2 | Daughter | — | Iowa |
| 28 | Norbert Leute | 1 | Son | — | Iowa |
| 29 | Maurice Kirchberg | 22 | Head | Carpenter | Iowa |
| 30 | Peggy Kirchberg | 15 | Wife | — | Tennessee |
| 31 | Cyril Kless | 42 | Head | Supervisor | Illinois |
| 32 | Myrtle Kless | 39 | Wife | — | Iowa |
| 33 | Grace Kless | 14 | Daughter | — | Iowa |
| 34 | Elmer Guenther | 36 | Head | Timekeeper | Iowa |
| 35 | Nellie Guenther | 36 | Wife | — | Iowa |
| 36 | Margery Guenther | 14 | Daughter | — | Iowa |
| 37 | Robert Guenther | 7 | Son | — | Iowa |
| 38 | Jennie Foley | 50 | Head | Servant | United States |
| 39 | Cornelia Cushing | 55 | Lodger | Inspector | Iowa |
| 40 | George Link | 37 | Head | Brakeman | Minnesota |
| 41 | Mildred Link | 32 | Wife | — | Iowa |
| 42 | Gerald Link | 7 | Son | — | Iowa |
| 43 | Edward Grelin | 34 | Brother-in-law | — | Iowa |
| 44 | Louise Grelin | 71 | Mother-in-law | — | Germany |
| 45 | Jane Mcdonough | 76 | Head | — | Free State |
| 46 | Timothy O'Regan | 45 | Son-in-law | Watchman | Free State |
| 47 | Louise O'Regan | 50 | Wife | — | Iowa |
| 48 | Eleanor O'Regan | 13 | Daughter | — | Iowa |
| 49 | Margaret O'Regan | 11 | Daughter | — | Iowa |
| 50 | Bernadette O'Regan | 10 | Daughter | — | 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)