MK
Mary Kline — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this Mary Kline across the 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Kline |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Hagerstown |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 104 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Housekeeper |
| Township / Ward | Hagerstown |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Sidney Kline | Daughter | — | 11 | ~1929 |
| Cody Kline | Son | — | 18 | ~1922 |
| Constance Kline | Daughter | — | 2 | ~1938 |
| Minnie Kline | Spouse | — | 42 | ~1898 |
| Mary Kline | Daughter | — | 20 | ~1920 |
| Edward Kline | Head | — | 49 | ~1891 |
| June Kline | Daughter | — | 9 | ~1931 |
Census Appearances
Daughter, age 10
Washington, Maryland · implied b. ~1920 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cline |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Daughter, age 20
Washington-County, Maryland · implied b. ~1920 — 7 household members
| Surname | Kline |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Hagerstown |
| 1935 Residence (County) | Washington |
| Occupation | Housekeeper |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 104 |
| Highest Grade | No 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 Mary Kline across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kline
Daughter · 1940 · age 20 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
June Kline
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Constance Kline
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sidney Kline
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cody Kline
Sibling · 1940 · age 18
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
1940 US Federal Census — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01561-00926)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Shank | 41 | Wife | Looper | Maryland |
| 42 | William Bestetter | 33 | In-law | Helper | Maryland |
| 43 | Ramona Bestetter | 11 | Niece | — | Maryland |
| 44 | Harmond Slank | 32 | Head | Machine Operator | Maryland |
| 45 | Frances Slank | 34 | Wife | — | Maryland |
| 46 | Betty L. Slank | 9 | Daughter | — | Maryland |
| 47 | Richard Slank | 5 | Son | — | Maryland |
| 48 | Frank Carbaugh | 55 | Head | Horticulturist | Pennsylvania |
| 49 | Clara B. Carbaugh | 54 | Wife | — | Maryland |
| 50 | Helen Carbaugh | 21 | Daughter | Shoe Factory | Maryland |
| 51 | Franklin Carbaugh | 16 | Son | — | Maryland |
| 52 | Ralph Carbaugh | 15 | Son | — | Maryland |
| 53 | Edward L. Kline | 49 | Head | Machinist | Maryland |
| 54 | Minnie O. Kline | 42 | Wife | — | Maryland |
| 55 | Mary A. Kline THIS PERSON | 20 | Daughter | Housekeeper | Maryland |
| 56 | Cody Kline | 18 | Son | Laborer | Maryland |
| 57 | Sidney Kline | 11 | Daughter | — | Maryland |
| 58 | June Kline | 9 | Daughter | — | Maryland |
| 59 | Constance Kline | 2 | Daughter | — | Maryland |
| 60 | Carrie Frouch | 77 | Head | — | Maryland |
| 61 | Beulah Frouch | 52 | Daughter | Shoe Factory | Maryland |
| 62 | William Moore | 35 | Boarder | Owner Operator | Maryland |
| 63 | Angus Reedy | 58 | Head | Janitor | Virginia |
| 64 | Dolly Reedy | 49 | Wife | — | Maryland |
| 65 | Marvin Reedy | 24 | Son | Foundry Worker | Maryland |
| 66 | Donald A. Reedy | 22 | Son | Laborer | Maryland |
| 67 | Idola Reedy | 18 | Daughter | — | Maryland |
| 68 | Angus Jr. Reedy | 16 | Son | — | Maryland |
| 69 | Ray Reedy | 13 | Son | — | Maryland |
| 70 | Eugene Reedy | 11 | Son | — | Maryland |
| 71 | Betty Reedy | 7 | Daughter | — | Maryland |
| 72 | Gold Davis | 39 | Head | — | Maryland |
| 73 | Freda Davis | 18 | Daughter | Clerk | Maryland |
| 74 | June Davis | 15 | Daughter | — | Maryland |
| 75 | Carl Davis | 14 | Son | — | Maryland |
| 76 | Leonard Davis | 12 | Son | — | Maryland |
| 77 | Roger Davis | 10 | Son | — | Maryland |
| 78 | Wilber Davis | 9 | Son | — | Maryland |
| 79 | Daniel Davis | 6 | Son | — | Maryland |
| 80 | Mary Jane Davis | 4 | Daughter | — | Maryland |
Related Census Records
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)