M.M White DC directory listings of business and home from June 1845-Ellens death in 1873.
1846 The Washington Directory and National Register J.T. Towers Mathias W. White listed as night watchman Patent Office Home- no address 1850 – The Washington directory, and Congressional and executive register, for 1850
White not listed 1853 – The Washington and Georgetown directory, strangers’ guide-book for Washington, and congressional and clerks’ register. Alfred Hunter.
1853 White M.M. coffin warehouse, s side Pa av, btw 6 and 7 w
1855 Boyd's directory of the District of Columbia White M. undertaker, 457 Pa ave.
1858 Boyd's directory of the District of Columbia
White Matthias M. undertaker, 
457 and 599 Penn ave
1860 Boyd's Washington and Georgetown Directory White Matthias M., undertaker, 457 Pa av, h do
1862 Boyd's Washington and Georgetown Directory White M.M., undertaker 457 Penn av, h 562 I north Also listed under undertakers in business section \
1864 Boyd's Washington and Georgetown Directory White, M.M. Undertaker, B north c 2nd west, h 562 I north
1866 Boyd's Washington and Georgetown Directory White Matthias M., undertaker 2d west cor Pa ave h Mass ave or N Cap
1867 Boyd's Directory of Washington and Georgetown White Mathias M. cabinet maker, Mass av cor N Cap
1868 Boyd's Directory of Washington and Georgetown White Mathias M. cabinet maker, Mass av cor N Cap
1870 DC Directory White, Ellen, wid Mathias 1 Mass Ave. corner North Capital
