1918-11-01, members: Samuel Gardner, violin; Willem Willeke, violincello; Richard Epstein, piano. [http://query.nytimes.com/gst/abstract.html?res=F10913F83D5D14738DDDA10894DA415B808EF1D3|1] 1919-01-04, members: same as above.[http://query.nytimes.com/gst/abstract.html?res=FA0617FA395511738DDDAD0894D9405B898DF1D3|2] 1919-08-04: Richard Epstein’s funeral [http://query.nytimes.com/gst/abstract.html?res=F50710FC3C5C147A93C7A91783D85F4D8185F9|3] 1919-09-14, announced members: Willem Willeke; Richard Johnson, violin; Aurelio Giorni. Next performances 1919-12-08, 1920-02-10. [http://query.nytimes.com/gst/abstract.html?res=F10616FD3E5E157A93C6A81782D85F4D8185F9|4] 1920-02-10, members: Elias Breeskin, Willem Willeke, Aurelio Giorni. [http://query.nytimes.com/gst/abstract.html?res=F20D1FF7385F1B728DDDA90994DA405B808EF1D3|5] 1920-12-08, members: Elias Breeskin, violin; Wllem Willeke, ’cello; Aurelio Giorni, piano. [http://query.nytimes.com/gst/abstract.html?res=F10913F83D5D14738DDDA10894DA415B808EF1D3|6] 1921-12-09, members: same as above [http://query.nytimes.com/gst/abstract.html?res=F6091FFE3A5A1B7A93C2A81789D95F458285F9|7] 1926-11-18, members: William Kroll, violinist; Willem Willeke, violincellist; and Aurelio Giorni, pianist. [http://www.thecrimson.com/article/1926/11/18/elshuco-trio-to-give-recital-pthrough/|8] 1928-09-20, members: Aurelio Giorni, William Kroll and Willem Willeke [http://www.concertprogrammes.org.uk/html/search/verb/GetRecord/4287|9] 1930-03-11, members: Willem Willeke, Karl Kraeuter (violinist), Aurelio Giorni. [http://docs.google.com/viewer?a=v&q=cache:dX-lItcO3fsJ:www.juilliard.edu/libraryarchives/pdfs/baton/LoRes/V09N7low.pdf+/search%3Fhl%3Den%26safe%3Doff%26q%3D%2Bsite:www.juilliard.edu%2B%2522elshuco%2Btrio%2522%2B%2522karl%2Bkraeuter%2522&hl=en&gl=us&pid=bl&srcid=ADGEEShG-wRoSyYT1VIA4KWh3_xT9euAwK-HNK8ARj1iFuaQKeY34gd8vDIGABBEcMRnbtzwYBbuY0PHI1b03VO_Mtty3zge4iZ93VtQPz0pllREYJ-JvZj1htAV1wEKWqQQw4dhVC_u&sig=AHIEtbTFNg33EaIpvL-1WV92WPiN07VemQ|10] [http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBcQFjAA&url=http%3A%2F%2Fwww.juilliard.edu%2Flibraryarchives%2Fpdfs%2Fbaton%2FLoRes%2FV09N4-5low.pdf&rct=j&q=%20site%3Awww.juilliard.edu%20%22elshuco%20trio%22%20%22karl%20kraeuter%22&ei=1V2rTJLSDcHgnAfr79i5Bg&usg=AFQjCNHoIuAZcbPcENUxIZqX462TrrWeVg&sig2=6jwTY8hlf1uK5Fb3aYXUOQ&cad=rja|11] 1933-03-07, members: Karl Kraeuter, Willem Willeke and Aurelio Giorni; augmented with Conrad Held, viola. [http://select.nytimes.com/gst/abstract.html?res=F60A17F83C5C16738DDDA10894DB405B838FF1D3|12]