Mary L. DeCosta^[1]

1864 -

• Name	Mary L. DeCosta
  Born	Dec 1864	Portugal   [2, 3]
  Gender	Female
  Census	1900	Somerville, Middlesex County, Massachusetts, USA   [4]
  Census	1910	Somerville, Middlesex County, Massachusetts, USA   [5]
  Census	1920	Somerville, Middlesex County, Massachusetts, USA   [3]
  Occupation	Dressmaker  [4, 5]
  Research Notes	Mary is listed as 65 years old in the 1920 census and 53 in 1910. but only 35 in 1900 (which specifically gives December 1864 as her birth month). Her year of emigration is given as 1870 in the 1900 census, but 1868 in 1920. Both parents were born in Portugal.  [3, 4, 5]
  Person ID	I4866	Mohr-Whalen
  Last Modified	5 Mar 2010

  
  

  Family	William H. Dennis           b. Oct 1844, Massachusetts, USA           d. Bef 1920  (Age ~ 75 years)
  Married	Abt 1890  [4]
  Notes	Family lived at 22 Holland St., Somerville in 1900 and 5 Elm Court in Somerville in 1910. [4, 5]
  Children	+ 1. Florence Viola Dennis           b. Jul 1891, Somerville, Middlesex County, Massachusetts, USA
  Last Modified	5 Mar 2010
  Family ID	F3365	Group Sheet  |  Family Chart

  
  

• Event Map		Born - Dec 1864 - Portugal Census - 1900 - Somerville, Middlesex County, Massachusetts, USA Census - 1910 - Somerville, Middlesex County, Massachusetts, USA Census - 1920 - Somerville, Middlesex County, Massachusetts, USA  = Link to Google Earth
  Pin Legend	: Address       : Location       : City/Town       : County/Shire       : State/Province       : Country       : Not Set

  
  

• Notes

  Living with her daughter Florence in 1920. [3]

  
  

• Sources

  [S928] Marriage Registration of Edward Whalen and Florence Viola Dennis. [S955] 1930 US Census - Household of Edward W. Whalen. [S956] 1920 US Census - Household of Edward W. Whalen. [S957] 1900 US Census - Household of William Dennis. [S958] 1910 US Census - Household of William Dennis.