Fifth Avenue Presbyterian Church: Music 
Article on music at the church where Mason was once Musical Directory.
http://www.fapc.org/music/music.htmlIrving S. Gilmore Music Library of Yale University: The Lowell Mason Papers
Includes a summary catalog.
http://webtext.library.yale.edu/xml2html/music.Mason.nav.html
University of Maryland: Lowell Mason Collection
Summary overview of manuscripts, papers, and books included.
http://www.lib.umd.edu/PAL/SCPA/MENC/lomason.html
Famous Americans: Lowell Mason
Biographical article and portrait.
http://famousamericans.net/lowellmason/
Find a Grave: Lowell Mason
Includes location and picture.
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=3999
CyberHymnal: Lowell Mason
Includes a brief biography, several dozen MIDI hymns tunes.
http://www.cyberhymnal.org/bio/m/a/s/mason_l.htm
Lowell Mason
Filmography showing the often uncredited use of his hymns in film soundtracks from the Internet Movie Database.
http://www.imdb.com/name/nm1131663/
Lowell Mason
Wikipedia article with biography, portrait, assessment of his influence and commentary on his bias toward European style, internal references, and links.
http://en.wikipedia.org/wiki/Lowell_Mason
Mason, Lowell
Biography showing his importance to American hymnody and music education and his family heritage from the Grove Concise Dictionary of Music at WQXR radio.
http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html?record=5817
