I have found her!
Josey plenty for you to follow up on, because the census returns are interesting.
Elizas Marriage on SPMURRAY ELISE
MCVEAN JOHN 1868 282/3 129 St Clement (Dundee)
A son named
Dugald Murray MacVean was born 8 Oct 1870 in Dundee to John McVean and Eliza Murray
1871 census 10 Murraygate, Dundee
Eliza McVEAN Head 25 born Perth Soldiers wife
Maria J REID 43 born Ireland - mother soldiers widow
Mary Ann SMALL 23 born Aberdeen sister factory spinner
John Leckie SMALL 3 born Dundee - nephew
Dougal M McVEAN 8 months born Dundee - son
1881 census Fort George, fortified garrison, on the Moray Firth.
John MACVEAN Head 39 sergeant, blacksmith journeyman
Eliza MACVEAN wife 33 domestic duties
Dugald MACVEAN son 10 born Dundee
Marion READ mother 56 domestic duties
Here is the free 1881 census on SP
https://www.scotlandspeople.gov.uk/view-image/nrs_census_lds/207759?return_row=0Death for Eliza on SPMACVEAN ELIZABETH 46 Mother: MORTON 1889 301/ 40 Liff, Benvie and Invergowrie
MURRAY ELIZABETH 46 Mother: MORTON 1889 301/ 40 Liff, Benvie and Invergowrie
The son Dugald emigrated to USA in about 1889, and married there in 1900 to Lucie Laing.
Dugald 1910 censushttps://www.familysearch.org/ark:/61903/1:1:MPFR-TDYHis family grave here:
https://www.findagrave.com/memorial/150839899/dugald-murray-macvean