After John Lothian's death, his widow Marion nee MacFie married 27 Sep 1865 John McEwen (b. Penicuik 29 Dec 1801 d. Renfrew 14 Nov 1887).
At 15 Carlton Terrace, on the 27th inst., by the Rev. Alexander McEwen, D.D., to Marion, widow of John Lothian, Esq., and daughter of the late John MacFie, Esq. (No cards)
Here's the 1871 census at 23 Park Circus, Glasgow (The Scotsman 29 Sep 1865 page 4)
McEwen Wm. L., Head, Marr, 37 yrs, EIA indian Merchant, Glasgow.
McEwen Douglas, son, 3 yrs, Glasgow.
McEwen Maurice L., son, 2 yrs, Glasgow.
McEwen John, Father, Marr, 70 yrs, EIA indian Merchant, Howgate, Midlothian.
Lothian M.J, step-bro, Un, 20 yrs, Student of law Cambridge, Edinburgh Leith.
McEwen Al--, step-mother, 52 yrs, Leith Midlothian.