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Mary Byrne — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Nelson, North Dakota
Our Model Tree links this Mary Byrne across the 1910 and 1920 US Censuses in Nelson, North Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 12-person household.
Age 11
b. ~1909
Female
Daughter
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Nelson, North Dakota |
| Surname | Byrne |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Colorado |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Petersburg Township |
| 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.
12 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Byrne | Daughter | — | 11 | ~1909 |
| Annie Byrne | Daughter | — | 8 | ~1912 |
| Stella Byrne | Daughter | — | 3 | ~1917 |
| Alice Byrne | Daughter | — | 1 | ~1919 |
| Theresa Byrne | Daughter | — | 13 | ~1907 |
| Frank Byrne | Head | — | 40 | ~1880 |
| Thomas O'Neil | Other | — | 61 | ~1859 |
| Lawrence Byrne | Son | — | ~1920 | |
| Floyd Byrne | Son | — | 14 | ~1906 |
| Alfred Byrne | Son | — | 9 | ~1911 |
| Walter Byrne | Son | — | 6 | ~1914 |
| Bessie Byrne | Spouse | — | 32 | ~1888 |
Census Appearances
1910
Nelson, North …
Daughter, age 1
Nelson, North Dakota · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Colorado |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Nelson, North …
Daughter, age 11
Nelson, North Dakota · implied b. ~1909 — 12 household members
| Surname | Byrne |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Colorado |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Mary Byrne across 2 US Census years (1910 and 1920) in Nelson, North Dakota, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Byrne
Daughter · 1920 · age 11 · b. ~1909 · North Dakota
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Sibling
Annie Byrne
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Byrne
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Byrne
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stella Byrne
Sibling · 1920 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Byrne
Sibling · 1920 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Byrne
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Byrne
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Byrne
Sibling · 1920 · age 13
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 — Nelson, North Dakota
Open full size
1920 US Federal Census — Nelson, North Dakota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1337unit:0957)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raymond Anderson | 28 | Head | Farmer | North Dakota |
| 2 | Lilla Anderson | 21 | Wife | — | Wisconsin |
| 3 | Morris Anderson | 1 | Son | — | North Dakota |
| 4 | Lawrence Anderson | 0 | Son | — | North Dakota |
| 5 | David Hirschberger | 64 | Head | Farm Labor | Pennsylvania |
| 6 | Frank J Byrne | 40 | Head | Farmer | Wisconsin |
| 7 | Bessie Byrne | 32 | Wife | — | Colorado |
| 8 | Floyd Byrne | 14 | Son | — | Iowa |
| 9 | Theresa Byrne | 13 | Daughter | — | Iowa |
| 10 | Mary Byrne THIS PERSON | 11 | Daughter | — | Iowa |
| 11 | Alfred Byrne | 9 | Son | — | Iowa |
| 12 | Annie Byrne | 8 | Daughter | — | North Dakota |
| 13 | Walter Byrne | 6 | Son | — | North Dakota |
| 14 | Stella Byrne | 3 | Daughter | — | North Dakota |
| 15 | Alice Byrne | 1 | Daughter | — | North Dakota |
| 16 | Lawrence Byrne | 0 | Son | — | North Dakota |
| 17 | Thomas O'Neil | 61 | Hired man | Farm Labor | Wisconsin |
| 18 | Gus Gunderson | 21 | Head | Farmer | North Dakota |
| 19 | Martin Gunderson | 21 | Head | Farmer | North Dakota |
| 20 | Hakon Ronneberg | 48 | Head | Farmer | Norway |
| 21 | Martha Ronneberg | 26 | Wife | — | Norway |
| 22 | Mabel Ronneberg | 6 | Daughter | — | North Dakota |
| 23 | Annie Ronneberg | 4 | Daughter | — | North Dakota |
| 24 | Oscar Ronneberg | 1 | Son | — | North Dakota |
| 25 | Ambor Ronneberg | 71 | Mother | — | Norway |
| 26 | Ida Ronneberg | 35 | Sister | — | North Dakota |
| 27 | Adolph Gunderson | 25 | Head | Farmer | North Dakota |
| 28 | Mabel Gunderson | 22 | Wife | — | North Dakota |
| 29 | Alton L Gunderson | 1 | Son | — | North Dakota |
| 30 | Gilbert Polyson | 53 | Head | Farmer | Wisconsin |
| 31 | Lena Johnson | 48 | Hired girl | Servant | Norway |
| 32 | Ole Haddie | 49 | Head | Farmer | Norway |
| 33 | Lena Haddie | 40 | Wife | — | Norway |
| 34 | Peter C Haddie | 20 | Son | Laborer | North Dakota |
| 35 | Hartvig Haddie | 14 | Son | — | North Dakota |
| 36 | George Haddie | 12 | Son | — | North Dakota |
| 37 | Conrad Haddie | 12 | Son | — | North Dakota |
| 38 | Wilhelmina Haddie | 5 | Daughter | — | North Dakota |
| 39 | Ole H Ruten | 42 | Head | Farmer | Norway |
| 40 | Anna Ruten | 34 | Wife | — | Norway |
| 41 | Harold W Ruten | 13 | Son | — | North Dakota |
| 42 | Arthur G Ruten | 11 | Son | — | North Dakota |
| 43 | John C Ruten | 9 | Son | — | North Dakota |
| 44 | Palmer Ruten | 6 | Son | — | North Dakota |
| 45 | Dagmar M Ruten | 3 | Daughter | — | North Dakota |
| 46 | John Risseth | 26 | Head | Farmer | Norway |
| 47 | Julia Risseth | 58 | Mother | — | Norway |
| 48 | Anton Anderson | 23 | Hired man | Laborer | Norway |
| 49 | Henry Lake | 60 | Head | Farmer | Minnesota |
| 50 | Martha Lake | 58 | Wife | — | Canada |
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)