MJ
Mary Jensen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Ramsey, Minnesota
Our Model Tree links this Mary Jensen across the 1920 and 1930 US Censuses in Ramsey, Minnesota (XGBoost, ~Confirmed) — first a daughter (b.~1913), then head of a 9-person household.
Age 17
b. ~1913
Female
Daughter
Born: Minnesota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Ramsey, Minnesota |
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1913 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Carol Jensen | Daughter | — | 1 | ~1929 |
| Rose Jensen | Daughter | — | 15 | ~1915 |
| Mary Jensen | Daughter | — | 17 | ~1913 |
| Edward Jensen | Head | — | 42 | ~1888 |
| William Jensen | Son | — | 9 | ~1921 |
| George Jensen | Son | — | 12 | ~1918 |
| Edward Jensen | Son | — | 14 | ~1916 |
| Thomas Jensen | Son | — | 5 | ~1925 |
| Caroline Jensen | Spouse | — | 39 | ~1891 |
Census Appearances
1920
Ramsey, Minnesota
Daughter, age 7
Ramsey, Minnesota · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jensen |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Daughter, age 17
Ramsey, Minnesota · implied b. ~1913 — 9 household members
| Surname | Jensen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Jensen across 2 US Census years (1920 and 1930) in Ramsey, Minnesota, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jensen
Daughter · 1930 · age 17 · b. ~1913 · Minnesota
★ You are viewing this record
Sibling
Carol Jensen
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Jensen
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Jensen
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Jensen
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Jensen
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Jensen
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 — Ramsey, Minnesota
Open full size
1930 US Federal Census — Ramsey, Minnesota
Page Contents
50 people indexed on this census page (ia:1930:minnesotacensus00reel1118:0509)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hilary J Flynn | 31 | Head | Asst. Corp. Counsel | Minnesota |
| 2 | Helen E Flynn | 30 | Wife | None | Minnesota |
| 3 | Hannah Hickey | 70 | Mother-in-law | None | Irish Free State |
| 4 | John P Case | 68 | Head | Carpenter | Norway |
| 5 | Frederick Albachter | 45 | Son-in-law | Asst. Superintendent | Minnesota |
| 6 | Anna C Albachter | 45 | Daughter | None | Minnesota |
| 7 | Annette Albachter | 11 | Granddaughter | None | Minnesota |
| 8 | Henry Langevin | 66 | Head | None | Massachusetts |
| 9 | Louise Langevin | 62 | Wife | None | Canada French |
| 10 | Philomen Dupre | 85 | Mother-in-law | None | Canada French |
| 11 | William Mikiska | 38 | Head | Foreman | Minnesota |
| 12 | Cecilia Mikiska | 27 | Wife | None | Minnesota |
| 13 | Deloris Mikiska | 5 | Daughter | None | Minnesota |
| 14 | William Jr Mikiska | 2 | Son | None | Minnesota |
| 15 | Leslie James | 35 | Head | Driver | Kansas |
| 16 | Bertha James | 35 | Wife | Servant | Kansas |
| 17 | Gwendolyn James | 11 | Daughter | None | Canada English |
| 18 | Jack James | 10 | Son | None | Canada English |
| 19 | Jeremiah Collins | 67 | Head | None | Irish Free State |
| 20 | Catherine Collins | 58 | Wife | None | Irish Free State |
| 21 | John Mcfadden | 38 | Boarder | Proprietor | Canada English |
| 22 | Edward Jensen | 42 | Head | Salesman | Minnesota |
| 23 | Caroline Jensen | 39 | Wife | None | Minnesota |
| 24 | Mary Jensen THIS PERSON | 17 | Daughter | None | Minnesota |
| 25 | Rose Jensen | 15 | Daughter | None | Minnesota |
| 26 | Edward Jensen | 14 | Son | None | Minnesota |
| 27 | George Jensen | 12 | Son | None | Minnesota |
| 28 | William Jensen | 9 | Son | None | Minnesota |
| 29 | Thomas Jensen | 5 | Son | None | Minnesota |
| 30 | Carol Jensen | 1 | Daughter | None | Minnesota |
| 31 | Mary A Dowd | 51 | Head | None | Minnesota |
| 32 | Walter E Dowd | 23 | Son | Laborer | Minnesota |
| 33 | Leo A Dowd | 19 | Son | Truck Driver | Minnesota |
| 34 | Theresa Dowd | 17 | Daughter | Operator | Minnesota |
| 35 | Lucille Laplata | 20 | Daughter | Cashiere | Minnesota |
| 36 | Lois M Laplata | 2 | Granddaughter | None | Minnesota |
| 37 | Joseph Dowd | 11 | Son | None | Minnesota |
| 38 | Herman D Mccord | 33 | Head | Salesman | Iowa |
| 39 | Catherine Mccord | 30 | Wife | None | Austria |
| 40 | Gerald Mccord | 1 | Son | None | Minnesota |
| 41 | Homer H Hartley | 41 | Head | Press Operator | Iowa |
| 42 | Florence Hartley | 35 | Wife | None | Iowa |
| 43 | Mary P Hartley | 1 | Daughter | None | South Dakota |
| 44 | Bernice Coulon | 22 | Niece | None | South Dakota |
| 45 | Baruch Levin | 51 | Lodger | Proprietor | Poland |
| 46 | Albin Hoeller | 26 | Head | Salesman | Minnesota |
| 47 | Ida Hoeller | 29 | Wife | None | Germany |
| 48 | Richard Hoeller | 1 | Son | None | Minnesota |
| 49 | Amiee Greenhagen | 23 | Sister-in-law | Laborer | Germany |
| 50 | Nathan Moore | 39 | Head | Furniture Dealer | Russia |
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)