There's a RC marriage of Bernard Lamont to Catherine McColl in 1876 in Holytown.
The 1861 census lists in Omoa Square Daniel Lammond, 48, coal miner, born Ireland with wife Catherine, 45 and son John, 21, both born Southend, Argyll; Catherine, 19 and Mary Jane, 14, both born in Airdrie; Daniel, 9, Bernard, 6, and Francis, 3, all born Shotts.
As the census was taken on 7 April 1861, Bernard would have had his 6th birthday between 8 April 1860 and 7 April 1861, so he is more likely to have been born in 1854 than in 1855.
You can view the originals of all these documents at
www.scotlandspeople.gov.uk for a small fee.