JH
John Harmon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Muskegon, Michigan
Our Model Tree links this John Harmon across the 1920 and 1930 US Censuses in Muskegon, Michigan (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 8-person household.
Age 16
b. ~1914
Male
Son
Born: Indiana
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Muskegon, Michigan |
| Surname | Harmon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Muskegon Heights City |
| Est. Birth Year | ~1914 |
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 |
|---|---|---|---|---|
| Anna Harmon | Daughter | — | 1 | ~1929 |
| Mary Harmon | Daughter | — | 9 | ~1921 |
| Mike Harmon | Head | — | 44 | ~1886 |
| Mike Harmon | Son | — | 14 | ~1916 |
| Alex Harmon | Son | — | 12 | ~1918 |
| Daniel Harmon | Son | — | 3 | ~1927 |
| John Harmon | Son | — | 16 | ~1914 |
| Mary Harmon | Spouse | — | 44 | ~1886 |
Census Appearances
1920
Muskegon, Michigan
Son, age 6
Muskegon, Michigan · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Muskegon, Michigan
Son, age 16
Muskegon, Michigan · implied b. ~1914 — 8 household members
| Surname | Harmon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| 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 Harmon across 2 US Census years (1920 and 1930) in Muskegon, Michigan, using XGBoost record linkage.
Show:
This person
Anchor record
John Harmon
Son · 1930 · age 16 · b. ~1914 · Michigan
★ You are viewing this record
Sibling
Mary Harmon
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Harmon
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alex Harmon
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Harmon
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mike Harmon
Sibling · 1930 · age 14
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 — Muskegon, Michigan
Open full size
1930 US Federal Census — Muskegon, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1015:0243)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Stanley Kwak | 41 | Head | Laborer | Poland |
| 52 | Anna Kwak | 38 | Wife | — | Poland |
| 53 | Mary Kwak | 20 | Daughter | Tester | Illinois |
| 54 | John Kwak | 15 | Son | — | Michigan |
| 55 | Rosa Kwak | 7 | Daughter | — | Michigan |
| 56 | Steve Teller | 35 | Boarder | Laborer | Czechoslovakia |
| 57 | Mike Harmon | 44 | Head | Laborer | Russia |
| 58 | Mary Harmon | 44 | Wife | — | Russia |
| 59 | John Harmon THIS PERSON | 16 | Son | — | Indiana |
| 60 | Mike Harmon | 14 | Son | — | Michigan |
| 61 | Alex Harmon | 12 | Son | — | Michigan |
| 62 | Mary Harmon | 9 | Daughter | — | Michigan |
| 63 | Daniel Harmon | 3 | Son | — | Michigan |
| 64 | Anna Harmon | 1 | Daughter | — | Michigan |
| 65 | Stanley Switecki | 38 | Head | Molder | Poland |
| 66 | Anna Switecki | 35 | Wife | — | Poland |
| 67 | Jennie Switecki | 10 | Daughter | — | Michigan |
| 68 | Clara Switecki | 7 | Daughter | — | Michigan |
| 69 | Julia Switecki | 6 | Daughter | — | Michigan |
| 70 | Irene Switecki | 4 | Daughter | — | Michigan |
| 71 | Valentine Skope | 41 | Head | Laborer | Austria |
| 72 | Frances Skope | 39 | Wife | — | Austria |
| 73 | John Skope | 13 | Son | — | Michigan |
| 74 | Charles Irsen | 44 | Head | Lumber Inspector | Norway |
| 75 | Kristina Irsen | 32 | Wife | — | Germany |
| 76 | Albert Lundeen | 46 | Head | Cabinet Maker | Sweden |
| 77 | Helena Lundeen | 46 | Wife | — | Canada |
| 78 | Edward Collier | 20 | Step-son | Printer | Michigan |
| 79 | George Lundeen | 15 | Son | — | Michigan |
| 80 | Eulalie Lundeen | 11 | Daughter | — | Michigan |
| 81 | Ruth Lundeen | 4 | Daughter | — | Michigan |
| 82 | Charles Laleak | 43 | Head | Sawyer | Illinois |
| 83 | Mary Laleak | 43 | Wife | — | Poland |
| 84 | Florence Laleak | 19 | Daughter | Laborer | Illinois |
| 85 | Alice Laleak | 17 | Daughter | Phone Girl | Illinois |
| 86 | Helen Przymska | 37 | Boarder | Laborer | Poland |
| 87 | Ralph Demars | 26 | Head | Inspector | Michigan |
| 88 | Mary Demars | 21 | Wife | — | Michigan |
| 89 | Eugene Demars | 1 | Son | — | Michigan |
| 90 | Joseph Pawlak | 55 | Head | Grocer | Poland |
| 91 | Hattie Pawlak | 54 | Wife | — | Poland |
| 92 | Stanley Pawlak | 22 | Son | Clerk | W. Virginia |
| 93 | Josephine Pawlak | 19 | Daughter | Clerk | W. Virginia |
| 94 | Hattie Pawlak | 15 | Daughter | — | Michigan |
| 95 | Gertie Pawlak | 13 | Daughter | — | Michigan |
| 96 | Pearl Pawlak | 9 | Daughter | — | Michigan |
| 97 | Daniel Frank Pawlak | 8 | Grandson | — | Michigan |
| 98 | John Sular | 58 | Boarder | Laborer | Poland |
| 99 | Tony Swiatek | 45 | Boarder | Laborer | Poland |
| 100 | George Rodzek | 42 | Boarder | Laborer | Poland |
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)