AL
Arthur Lund — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Boulder, Colorado
Our Model Tree links this Arthur Lund across the 1910 and 1920 US Censuses in Boulder, Colorado (XGBoost, ~Confirmed) — first a son (b.~1909), then head of a 11-person household.
Age 11
b. ~1909
Male
Son
Born: Colorado
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Boulder, Colorado |
| Surname | Lund |
| Given Name | Arthur |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Township 1S Precinct 9 Lafayette |
| 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.
11 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Edith Lund | Daughter | — | 19 | ~1901 |
| Anna Lund | Spouse | — | 45 | ~1875 |
| Hulda Lund | Daughter | — | 21 | ~1899 |
| Arthur Lund | Son | — | 11 | ~1909 |
| Edward Lund | Head | — | 48 | ~1872 |
| Ruth Lund | Daughter | — | 15 | ~1905 |
| Florence Lund | Daughter | — | 4 | ~1916 |
| Clarence Lund | Son | — | 7 | ~1913 |
| William Lund | Son | — | 13 | ~1907 |
| Theodore Lund | Son | — | 9 | ~1911 |
| Esther Lund | Daughter | — | 17 | ~1903 |
Census Appearances
1910
Boulder, Colorado
Son, age
Boulder, Colorado · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lund |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | United States |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Boulder, Colorado
Son, age 11
Boulder, Colorado · implied b. ~1909 — 11 household members
| Surname | Lund |
| Given Name | Arthur |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Arthur Lund across 2 US Census years (1910 and 1920) in Boulder, Colorado, using XGBoost record linkage.
Show:
This person
Anchor record
Arthur Lund
Son · 1920 · age 11 · b. ~1909 · Colorado
★ You are viewing this record
Sibling
Florence Lund
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Lund
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lund
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Lund
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Lund
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Lund
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Lund
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hulda Lund
Sibling · 1920 · age 21
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 — Boulder, Colorado
Open full size
1920 US Federal Census — Boulder, Colorado
Page Contents
48 people indexed on this census page (ia:1920:14thcensusofpopu156unit:0171)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Isabella Lord | 42 | Head | Cook | Colorado |
| 52 | Emilda Lord | 7 | daughter | None | Colorado |
| 53 | Mary Ann Lord | 3 | daughter | None | Colorado |
| 54 | Dan Christoff | 34 | Boarder | Laborer | Bulgaria |
| 55 | Mike Dobroff | 35 | Boarder | Laborer | Bulgaria |
| 56 | Dofri Russoff | 43 | Boarder | Miner | Bulgaria |
| 57 | Mike Bonoff | 30 | Boarder | Miner | Bulgaria |
| 58 | Hassalin Doncheff | 46 | Boarder | Miner | Bulgaria |
| 59 | Steve Christoff | 31 | Boarder | Driver | Bulgaria |
| 60 | Steve Petroff | 35 | Boarder | Fireman | Bulgaria |
| 61 | Nick Markoff | 35 | Boarder | Driver | Bulgaria |
| 62 | Joseph Lincheff | 53 | Boarder | Miner | Bulgaria |
| 63 | Andrew J. Mcmillan | 56 | Head | Farmer | Ireland |
| 64 | Louisa R. Mcmillan | 51 | wife | None | Pennsylvania |
| 65 | Sadie I. Mcmillan | 15 | daughter | None | Colorado |
| 66 | James H. Mcmillan | 14 | son | None | Colorado |
| 67 | James W. Ramsay | 85 | Father in law | None | Pennsylvania |
| 68 | Margaret Dyer | 14 | Hired help | Cook | Illinois |
| 69 | Andrew B. Desany | 23 | Hired help | Laborer | Texas |
| 70 | Benjamin Tiffany | 49 | Hired help | Laborer | New York |
| 71 | Andrew Anderson | 58 | Hired help | Laborer | Sweden |
| 72 | Fred Smith | 38 | Hired help | Laborer | North Carolina |
| 73 | George W. Wheeler | 44 | Hired help | Laborer | New York |
| 74 | William E. Wanke | 31 | Head | Farmer | Colorado |
| 75 | Bessie E. Wanke | 28 | wife | None | Colorado |
| 76 | Wilbur N. Wanke | 5 | son | None | Colorado |
| 77 | William Berenbaum | 68 | Head | Farmer | Maryland |
| 78 | Eliza Berenbaum | 63 | wife | None | Wisconsin |
| 79 | William Jr. Berenbaum | 24 | son | Loader | Colorado |
| 80 | Hazel Berenbaum | 20 | daughter | None | Colorado |
| 81 | Charles E. Peck | 62 | Head | Farmer | Michigan |
| 82 | Jennie Peck | 57 | wife | None | Michigan |
| 83 | Charles Jr. Peck | 19 | son | Farm Laborer | Colorado |
| 84 | William Sr. Wanke | 60 | Head | Farmer | Connecticut |
| 85 | Ida M. Wanke | 49 | wife | None | Ohio |
| 86 | Charles R. Wanke | 18 | son | Farm Laborer | Colorado |
| 87 | Madison Stotts | 63 | Hired help | Laborer | United States |
| 88 | Edward Lund | 48 | Head | Farmer | Sweden |
| 89 | Anna Lund | 45 | wife | None | Sweden |
| 90 | Hulda Lund | 21 | daughter | None | Colorado |
| 91 | Edith Lund | 19 | daughter | None | Colorado |
| 92 | Esther Lund | 17 | daughter | None | Colorado |
| 93 | Ruth Lund | 15 | daughter | None | Colorado |
| 94 | William Lund | 13 | son | None | Colorado |
| 95 | Arthur Lund THIS PERSON | 11 | son | None | Colorado |
| 96 | Theodore Lund | 9 | son | None | Colorado |
| 97 | Clarence Lund | 7 | son | None | Colorado |
| 98 | Florence Lund | 4 | daughter | None | Colorado |
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)