1871 shows the following possibilites (as transcribed):
Agnes Hales, 14, domestic servant and b. Bo'ness. She is working at 83 St Andrew St, Leith Midl.
Mary
Hailer, 14, domestic servant and born
Donna, Linlithgowshire. She is working at 9 Cross Street, Linlithgow.
Struggle with any clues for Elizabeth

Monica
Added: Mary I think is still unmarried in 1881 as there shows:
Mary Hailles, 25, table maid b. Bo'ness at 4 Inverleith Ter, Edinburgh.