There is an entry in the Cadet Papers for a William New Lumsden Beathe b 1841 (image could be Beattie)
Educated at the Gymnasium, Old Aberdeen.
Gives his parents as father W N Beattie (deceased) merchant and mother (no name) residing at 7 Dewar Place, Edinburgh.
Copy of birth cert gives father as William New Beattie, mother Isabella Lumsden - was born in Alverstoke, Hampshire.