WM
William Mcmahon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lane, Oregon
Our Model Tree links this William Mcmahon across the 1910, 1920 and 1930 US Censuses in Lane, Oregon (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 5-person household.
Age 39
b. ~1891
Male
Head
Born: Oregon
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Lane, Oregon |
| Surname | McMahon |
| Given Name | William A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Oregon |
| Age at First Marriage | 27 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Occupation | Laborer |
| Industry | Saw Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | $200 |
| Radio Set | R |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Laborer |
| Township / Ward | Westfir Town |
| Est. Birth Year | ~1891 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Phyllis Mcmahon | Daughter | — | 1 | ~1929 |
| Evelyn Mcmahon | Daughter | — | 10 | ~1920 |
| William Mcmahon | Son | — | 9 | ~1921 |
| William Mcmahon | Head | — | 39 | ~1891 |
| Fernie Mcmahon | Other | — | 31 | ~1899 |
Census Appearances
1910
Lane, Oregon
Other, age 18
Lane, Oregon · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | William A. |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | Laborer |
| Industry | Logging Camp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1920
Lane, Oregon
Other, age 29
Lane, Oregon · implied b. ~1891 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | William H |
| Relationship to Head | R |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Oregon |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | Labor |
| Industry | Logger |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Lane, Oregon
Head, age 39
Lane, Oregon · implied b. ~1891 — 5 household members
| Surname | McMahon |
| Given Name | William A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Oregon |
| Age at First Marriage | 27 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | Laborer |
| Industry | Saw Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | $200 |
| Radio Set | R |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 William Mcmahon across 3 US Census years (1910, 1920 and 1930) in Lane, Oregon, using XGBoost record linkage.
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This person
Anchor record
William Mcmahon
Head · 1930 · age 39 · b. ~1891 · Oregon
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Lane, Oregon
Open full size
1930 US Federal Census — Lane, Oregon
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1946unit:1203)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Roy R. Kearns | 41 | Head | Blacksmith | Missouri |
| 52 | Margaret C. Kearns | 31 | Wife-H | — | Oregon |
| 53 | Etta E. Kearns | 8 | daughter | — | Oregon |
| 54 | Lois V. Kearns | 5 | daughter | — | Oregon |
| 55 | Harley O. Cain | 38 | Head | Laborer | Oregon |
| 56 | Iva A. Cain | 35 | Wife-H | — | Oregon |
| 57 | Elva M. Cain | 16 | daughter | — | Oregon |
| 58 | Velma A. Cain | 15 | daughter | — | Oregon |
| 59 | William A. Mcmahon THIS PERSON | 39 | Head | Laborer | Oregon |
| 60 | Fernie A. Mcmahon | 31 | Wife-H | — | Oregon |
| 61 | Evelyn M. Mcmahon | 10 | daughter | — | Oregon |
| 62 | William A. Jr. Mcmahon | 9 | Son | — | Oregon |
| 63 | Phyllis L. Mcmahon | 1 | daughter | — | Oregon |
| 64 | Ernest Osborne | 25 | Head | Laborer | Kansas |
| 65 | Dollie Osborne | 23 | Wife-H | — | Washington |
| 66 | Arnold S. Rypum | 24 | Head | Laborer | North Dakota |
| 67 | Frances D. Rypum | 24 | Wife-H | — | Illinois |
| 68 | Bryan W. Stone | 32 | Head | Millwright | Montana |
| 69 | Laura E. Stone | 25 | Wife-H | — | Iowa |
| 70 | Inez Stone | 8 | daughter | — | Idaho |
| 71 | Forrest C. Hall | 26 | Head | Logger | Washington |
| 72 | Mabel M. Hall | 20 | Wife-H | — | Oregon |
| 73 | Bruce W. Pettijohn | 27 | Head | Lumber Grader | Wisconsin |
| 74 | Lucile L. Pettijohn | 27 | Wife-H | — | Oregon |
| 75 | Glenn E. Johnson | 27 | Head | Machinist | Oregon |
| 76 | Violet F. Johnson | 26 | Wife-H | — | Oregon |
| 77 | Willis M. Warfield | 30 | Head | Laborer | Iowa |
| 78 | Josephine W. Warfield | 26 | Wife-H | — | Wisconsin |
| 79 | Royal S. Humphrey | 51 | Head | Pondman | Oregon |
| 80 | Libby D. Humphrey | 41 | Wife-H | Washerwoman | Oregon |
| 81 | Percy N. Humphrey | 17 | Son | — | Oregon |
| 82 | Evelyn G. Humphrey | 15 | daughter | — | Oregon |
| 83 | Mary V. Humphrey | 6 | daughter | — | Oregon |
| 84 | Leonard E. Humphrey | 2 | Son | — | Oregon |
| 85 | Howard C. Wessner | 39 | Head | Millwright | Pennsylvania |
| 86 | Vesta V. Wessner | 20 | Wife-H | — | Oregon |
| 87 | Juanita L. Wessner | 0 | daughter | — | Oregon |
| 88 | Louis E. Roberts | 20 | Head | Laborer | Canada-English |
| 89 | Marguerite A. Roberts | 20 | Wife-H | — | Alabama |
| 90 | Aloysius C. Streit | 31 | Head | Dry Kilnman | Nebraska |
| 91 | Ella M. R. Streit | 33 | Wife-H | — | Nebraska |
| 92 | Helen A. Streit | 9 | daughter | — | Nebraska |
| 93 | Robert F. Streit | 8 | Son | — | Nebraska |
| 94 | Richard W. Streit | 4 | Son | — | Oregon |
| 95 | William H. Rockwell | 39 | Head | Millwright | Oregon |
| 96 | Birdie D. Rockwell | 27 | Wife-H | — | Oregon |
| 97 | Forrest F. Rockwell | 5 | Son | — | Oregon |
| 98 | Daniel W. Rockwell | 0 | Son | — | Oregon |
| 99 | Richard C. Carlson | 41 | Head | Laborer | Sweden |
| 100 | Hillfride M. Carlson | 39 | Wife-H | — | Sweden |
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)