Winfield Directory 1880:
Dorley, Mrs. M., dress maker and hair work, Main e. s. bet 9th and 10th avenues.
McQuillen, Carrie, Mrs. M. Dorley, boards same.
DRESS MAKERS.
DORLEY, MRS. M., Main, e. s. between 10th and 11th avenues, upstairs.
SCHAFFHAUS, MRS. N., Manning, s. w. corner 5th avenue.
HAIR WORK.
DORLEY, MRS. M., Main, e. s. between 10th and 11th avenues, upstairs.
Note: I could not find a single newspaper item about Mrs. M. Dorley. MAW