found: Kammarmusik, 1994:container (Amanda Maier, 1853-1894) insert, p. 45 (Swedish violinist & composer; married name Röntgen)
found: Sohlmans musiklexikon(under Röntgen, Julius: Amanda Maier, b. 2-19-1853, d. 7-15-1894; Swedish violinist; Röntgen's wife)
found: Bouveresse, J.-C. Musique romantique des pays du nord [SR] p2008:container (Maïer; Maier, Amanda) insert (Amanda Maïer; b. 1853, Landskrona; m. Julius Röntgen, 1880; d. 1894, aged 40; Swedish composer and violinist)
found: Grove music online, December 31, 2013(In article on Julius Röntgen: His first wife, Amanda Maier (b Landskrona, 19 Feb 1853; d Amsterdam, 15 July 1894), a violinist, studied at the Stockholm Conservatory and with (1) Engelbert Röntgen (i) in Leipzig)
found: Maier, A. Violin concerto in one movement, 2014:caption (Amanda Maier-Röntgen, 1853-1894)