ML
Mildred Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Mildred Long across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed), with identified parents Andrew & Frederick — first a spouse (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Long |
| Given Name | Mildred A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Colgate |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Highest Grade | G 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Colgate |
| Est. Birth Year | ~1915 |
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 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Conrad Long | Head | — | 30 | ~1910 |
| Marian Long | Daughter | — | 4 | ~1936 |
| Mildred Long | Spouse | — | 25 | ~1915 |
| Gloria Long | Daughter | — | 2 | ~1938 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 4
Baltimore, Maryland · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mildred E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
None, Maryland
Daughter, age 15
None, Maryland · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Spouse, age 25
Baltimore-County, Maryland · implied b. ~1915 — 4 household members
| Surname | Long |
| Given Name | Mildred A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Colgate |
| 1935 Residence (County) | Baltimore |
| Highest Grade | G 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Mildred Long across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Andrew Long (~0.92 confidence) and father Frederick Long (~0.92 confidence) and mother Amelia Long (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Long
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Frederick Long
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Amelia Long
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mildred Long
Spouse · 1940 · age 25 · b. ~1915 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Baltimore-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01507-00126)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louisa Greenfield | 12 | daughter | — | Maryland |
| 42 | Dorothy Greenfield | 9 | daughter | — | Maryland |
| 43 | George Greenfield | 7 | son | — | Maryland |
| 44 | Joseph Clapper | 66 | Head | — | Maryland |
| 45 | Nettie Hogg | 53 | housekeeper | Manager | Maryland |
| 46 | Bernard O. Page | 25 | Head | Laborer | Maryland |
| 47 | Christina Page | 19 | wife | Box Folder | Maryland |
| 48 | Paul White | 56 | Head | Trucker | Maryland |
| 49 | Robert Greenfelder | 26 | Head | Chauffeur | Maryland |
| 50 | Lillian Greenfelder | 25 | Wife | — | Maryland |
| 51 | Lillian Greenfelder | 1 | daughter | — | Maryland |
| 52 | Robert Greenfelder | 0 | son | — | Maryland |
| 53 | Carolyn Webb | 5 | daughter | — | Maryland |
| 54 | Alice O. Webb | 49 | Head | — | Maryland |
| 55 | Warfield R. Lee | 35 | son | Painter | Maryland |
| 56 | Norma Lee | 25 | daughter-in-law | — | Maryland |
| 57 | Donald R. Lee | 4 | grandson | — | Maryland |
| 58 | Mary M. Brown | 74 | sister | — | Virginia |
| 59 | George J. Jr. Mox | 35 | Head | Laborer Foreman | Maryland |
| 60 | Julia Mox | 35 | Wife | — | Maryland |
| 61 | Joseph Wally | 49 | Head | Foreman | Czecho-Slovakia |
| 62 | Catharine Wally | 33 | Wife | — | Maryland |
| 63 | August Wally | 21 | son | Secretary | Maryland |
| 64 | Joseph Jr. Wally | 8 | son | — | Maryland |
| 65 | Luther S. Case | 36 | Head | Sanitary Driver | Georgia |
| 66 | Mildred A. Case | 36 | Wife | — | Maryland |
| 67 | Josephine Miller | 59 | Head | — | Czecho-Slovakia |
| 68 | Robert Albrecht | 29 | Head | Machine Hand | Maryland |
| 69 | Mary Albrecht | 26 | Wife | — | Maryland |
| 70 | Charles Albrecht | 6 | son | — | Maryland |
| 71 | Wm. Albrecht | 3 | son | — | Maryland |
| 72 | Robert Albrecht | 1 | son | — | Maryland |
| 73 | William Albrecht | 35 | brother | Automobile Mechanic | Maryland |
| 74 | Conrad Jr. Long | 30 | Head | Chauffeur | Maryland |
| 75 | Mildred A. Long THIS PERSON | 25 | Wife | — | Maryland |
| 76 | Marian Long | 4 | daughter | — | Maryland |
| 77 | Gloria Long | 2 | daughter | — | Maryland |
| 78 | Morgan Kelly | 33 | Head | Steel Worker | Maryland |
| 79 | Barbara Kelly | 22 | Wife | — | Maryland |
| 80 | Richard Kelly | 9 | son | — | Maryland |
Pedigree Summary
Mildred
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)