Mountainside Genealogy (in Union County, NJ)

USA (1,403,636) > New Jersey (19,965) > Union County (1,486) > Mountainside (48)


NOTE: Additional records that apply to Mountainside are also found through the Union County and New Jersey pages.


Mountainside Birth Records

1901-1929 New Jersey Birth Index MyHeritage online

New Jersey Births and Christenings Index, 1660-1931 Ancestry online

New Jersey, Birth Records, 1848-1920 New Jersey State Archives

New Jersey, Birth Records, 1921-present New Jersey Department of Health

Mountainside Cemetery Records

Community Presbyterian Church Memorial Garden Find a Grave online

New Jersey Deaths and Burials Index, 1798-1971 Ancestry online

Mountainside Census Records

1855 New Jersey, State Census Ancestry online

1865 New Jersey, State Census Ancestry online

1875 New Jersey, State Census Ancestry online

1885 New Jersey State Census MyHeritage online

1885 New Jersey, State Census Ancestry online

1895 New Jersey, State Census Ancestry online

1905 New Jersey, State Census Ancestry online

1915 New Jersey State Census MyHeritage online

1915 New Jersey, State Census Ancestry online

Federal Census of 1940, Mountainside, New Jersey LDS Genealogy online

U.S. Federal Census 1790-1950 Ancestry online

U.S. Federal Census 1790-1950 MyHeritage online

United States Federal Census, 1790-1950 Family Search online

Mountainside Church Records

New Jersey Births and Christenings Index, 1660-1931 Ancestry online

Mountainside City Directories

Barton-Wand City of Plainfield, Borough of North Plainfield, Westfield, Mountainside, Dunellen, Fanwood and Scotch Plains Directory 1907 Westfield Memorial Library online

Plainfield (New Jersey) city directories FamilySearch Library

Polk's Westfield (Union County, N. J.) City Directory Including Cranford, Garwood, Kenilworth and Mountainside 1961-1962, 1964-1966, 1968-1969, 1971-1980, 1982 Cranford Public Library online

Richmond's Directory of Plainfield, North Plainfield, Westfield, Mountainside, Dunellen, Fanwood and Scotch Plains (New Jersey) 1912-1922, 1924 Westfield Memorial Library online

Wand's City of Plainfield, Borough of North Plainfield, Westfield, Mountainside, Dunellen, Fanwood and Scotch Plains Directory 1903-1905, 1911 Westfield Memorial Library online

Westfield (Union County, N. J.) City Directory Including: Cranford, Garwood, Kenilworth and Mountainside 1974-1980, 1982 Westfield Memorial Library online

Westfield and Mountainside City Directory 1922 MyHeritage online

Westfield and Mountainside City Directory 1924 MyHeritage online

Westfield and Mountainside City Directory 1928 MyHeritage online

Mountainside Death Records

1920-1929, 1949-2017 New Jersey Death Index MyHeritage online

New Jersey Death Index, 1901-1903, 1920-1929, 1949-2000 Ancestry online

New Jersey Deaths and Burials Index, 1798-1971 Ancestry online

New Jersey, Death Records, 1848-1930 New Jersey State Archives

New Jersey, Death Records, 1931-present New Jersey Department of Health

United States Obituary Index from Online Sources MyHeritage online

Mountainside Histories and Genealogies

FamilySearch Family Tree MyHeritage online

History of the Borough of Mountainside, Union County, New Jersey, 1895-1945 Ancestry online

History of the Borough of Mountainside, Union County, New Jersey, 1895-1945 FamilySearch Library

MyHeritage Family Trees MyHeritage online

Mountainside Marriage Records

1901-1914 New Jersey Marriage License Index MyHeritage online

1915-2016 New Jersey Marriage License Index MyHeritage online

New Jersey Marriage Index, 1901-2016 Ancestry online

New Jersey Marriage Records (selections), 1670-1965 Ancestry online

New Jersey Marriages, 1684-1895 Ancestry online

New Jersey, Marriage Records, 1848-1930 New Jersey State Archives

New Jersey, Marriage Records, 1931-present New Jersey Department of Health

Mountainside Newspapers and Obituaries

United States Obituary Index from Online Sources MyHeritage online

Mountainside Probate Records

1785-1924 New Jersey, Wills and Probate Records Ancestry online


Not sure what to do next in your genealogy research? Get some new ideas by using our Ancestor Source Finder tool.

Additions or corrections to this page? We welcome your suggestions through our Contact Us page