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Mary Byrne — 1920 US Census Record
Model Tree available1920 United States Federal Census · Multnomah, Oregon
Our Model Tree links this Mary Byrne across the 1920, 1930 and 1940 US Censuses in Multnomah, Oregon (XGBoost, ~Confirmed), with identified parents Alfred & Wilfred — first a daughter (b.~1917), then head of a 4-person household.
Age 3
b. ~1917
Female
Daughter
Born: Oregon
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Multnomah, Oregon |
| Surname | Byrne |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Additional Details | |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Township / Ward | Portland City |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Byrne | Daughter | — | 3 | ~1917 |
| Alfred Byrne | Head | — | 43 | ~1877 |
| Alfred Byrne | Son | — | 9 | ~1911 |
| Nellie Byrne | Spouse | — | 27 | ~1893 |
Census Appearances
1920
Multnomah, Oregon
Daughter, age 3
Multnomah, Oregon · implied b. ~1917 — 4 household members
| Surname | Byrne |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Multnomah, Oregon
Daughter, age 13
Multnomah, Oregon · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | Margaret R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Multnomah-County, Oregon
Daughter, age 23
Multnomah-County, Oregon · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | Margaret K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Mary Byrne across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alfred Byrne (~0.92 confidence) and father Wilfred Byrne (~0.92 confidence) and mother Marguerite Byrne (~0.92 confidence) and mother Nellie Byrne (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfred Byrne
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Wilfred Byrne
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Marguerite Byrne
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Nellie Byrne
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Byrne
Daughter · 1920 · age 3 · b. ~1917 · Oregon
★ You are viewing this record
Sibling
Alfred Byrne
Sibling · 1920 · 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
1920 US Federal Census — Multnomah, Oregon
Open full size
1920 US Federal Census — Multnomah, Oregon
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1501unit:0503)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Alfred M. Byrne | 43 | Head | — | Washington |
| 52 | Nellie Byrne | 27 | Wife | Engineer | Washington |
| 53 | Alfred Jr. Byrne | 9 | Son | — | Oregon |
| 54 | Mary J. Byrne THIS PERSON | 3 | Daughter | — | Oregon |
| 55 | Jennie Larned | 53 | Head | — | New York |
| 56 | Mary Larned | 29 | Sister | — | Missouri |
| 57 | Katherine L. Larned | 20 | Daughter | Clerk | Utah |
| 58 | Jack Michael | 68 | Head | — | Switzerland |
| 59 | Rose Michael | 35 | Daughter | Teacher | No. Dakota |
| 60 | Alice D. Michael | 32 | Son | Machinist | No. Dakota |
| 61 | Arthur J. Michael | 29 | Son | Ship Fitter | Oregon |
| 62 | H. C. Daniels | 34 | Head | Iron Molder | Wisconsin |
| 63 | Lena A. Daniels | 30 | Wife | — | Oregon |
| 64 | Harold A. Daniels | 4 | Son | — | Oregon |
| 65 | Mary Morris | 68 | Mother-in-law | — | England |
| 66 | John J. Lowery | 41 | Head | Collector | New York |
| 67 | Eva J. Lowery | 47 | Wife | — | Iowa |
| 68 | Anna E. Striebel | 16 | Step-daughter | — | Oregon |
| 69 | Gordon B. Bell | 34 | Head | Manager | Oregon |
| 70 | Maude E. Bell | 36 | Wife | — | Oregon |
| 71 | Ida L. Bell | 15 | Step-daughter | — | Oregon |
| 72 | Bernice Bell | 13 | Step-daughter | — | Oregon |
| 73 | Roberta Bell | 11 | Step-daughter | — | Oregon |
| 74 | Arthur A. Nolan | 28 | Head | Electrician | Washington |
| 75 | Carrie Nolan | 26 | Wife | — | Idaho |
| 76 | Gaylord A. Nolan | 1 | Son | — | Oregon |
| 77 | Roscoe C. Lanford | 39 | Head | Cabinet Maker | Colorado |
| 78 | Mary M. Lanford | 34 | Wife | — | Wisconsin |
| 79 | Charles E. Lanford | 9 | Son | — | Oregon |
| 80 | Ione Lanford | 4 | Son | — | Oregon |
| 81 | Ernest Garlson | 33 | Head | Sail Maker | Oregon |
| 82 | Adelaide L. Garlson | 26 | Wife | — | Oregon |
| 83 | Willard R. Garlson | 4 | Son | — | Oregon |
| 84 | Francis M. Garlson | 1 | Daughter | — | Oregon |
| 85 | Hannah M. Wood | 50 | Head | — | Ohio |
| 86 | Adaline C. Wood | 30 | Daughter | Accountant | Ohio |
| 87 | Robert L. Wood | 27 | Son | Baggageman | Ohio |
| 88 | Sara E. Wood | 20 | Daughter | Stenographer | Ohio |
| 89 | Clifford L. Harding | 27 | Head | — | Oregon |
| 90 | Nellie Harding | 26 | Wife | — | Oregon |
| 91 | Max L. Harding | 4 | Daughter | — | Oregon |
| 92 | David W. Macomber | 59 | Head | Traction-Man | Wisconsin |
| 93 | Sarah M. Macomber | 55 | Wife | — | Iowa |
| 94 | David W. Jr. Macomber | 21 | Son | — | Iowa |
| 95 | George A. Macomber | 19 | Son | Cutter | Iowa |
| 96 | Imogene A. Macomber | 24 | Daughter-in-law | — | Pennsylvania |
| 97 | Richard A. Hutchinson | 60 | Head | Secretary | Ohio |
| 98 | Mary A. Hutchinson | 58 | Wife | — | Ohio |
| 99 | Alice A. Hutchinson | 31 | Daughter | Stenographer | Ohio |
| 100 | Katherine B. Hutchinson | 29 | Daughter | — | Indiana |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)