Prosser, Joseph F.; mechanical engineer; born, Austria, March 17, 1872; son of Louis and Katerina Franck; educated, public schools in Austria; married, Cleveland, Feb. 11, 1899, Mary B. Peterka; six children, five sons and one daughter; in 1888, started to serve as machinist for C. D. Bartlett & Co.; 1892 to 1895, with Globe Iron Co.; 1895 to 1898, served in U. S. Army (Co. F, 15th U. S. Infantry), where he studied mechanical engineering in his spare time; 1898 to 1902, served at Lord & Bowler’s machine shop as mechanical engineer; 1902-1904, Macbeth Iron Co.; as erecting engineer; 1905-1906, The Kundtz Co.; master mechanic; 1906, Macbeth Iron Co., erecting engineer; 1907, incorporated The Prosser Engineering Co.; pres. and mgr. The Prosser Engineering Co.; member of C. S. P. B. J., No. 15.