The University of Glasgow have added a database of graduates of their university to their website, the database covers the period from 1451-1896.
Henry Stanley can be found at:
http://universitystory.gla.ac.uk/biography/?id=WH16567&type=P&o=&start=0&max=20&l=
Oct 20, in the Cathedral Armagh, by the Rev. Benjamin Wade, Rector of the parish, George Ward Street, Esq., Lieutenant 16th Regiment to Septima Caroline, third daughter of John Stanley, Esq., Pavilion, Armagh.
Armagh Guardian, Friday, October 21st, 1859, page 8.
Jan. 20, in the Cathedral, Armagh, by the Rev. Saville L’Estrange Malone, John Blurton, Esq., D. A. Commissary General, Commissariat Staff to Eliza Adelaide, fourth daughter of John Stanley, Esq., Pavilion, Armagh.
Armagh Guardian, Friday, January 21st, 1870, page 1.
April 29, at the Cathedral, Armagh, by the Rev. James Michael Strangways, A.M., Charles Fleming Hunter, Esq., Major 72nd Highlanders to Annie, fifth daughter of John Stanley, Esq., Pavilion, Armagh
Armagh Guardian, Friday, April 30th, 1869, page 1.