The 1887 marriage has Louisa's maiden name transcribed as Tuckey with father James, a butcher. Again I note that the writing on the original is poor.
I think more likely is the surname Tucker as there is this marriage in Portsea March 20th 1878
Frederick James Armstrong 25 Licensed Victualler to Louisa Tucker 23 Spinster - Father James Tucker, Butcher.
The 1881 census has the Armstongs at 28 North Street, Portsea. Frederick is a 28 year old publican born Southampton. Louisa is 25, born in Birmingham. They have a 2 year old daughter called Louisa born Portsea.
Death notice for Frederick James Armstrong 14 Jan 1887 " On the 5th instant, at North Street, Portsea, Mr Frederick James Armstrong, aged 34 years".
William