Archibald Alexander and family

Again this stone with it's splendid urn at the top is not shown at it's best due to the scaffolding and like the previous one it is also filled to the brim with inscriptions. And the men in this family all seemed to die very young. Could this be due to some inherited disease? Guess we will never know.
Here is the text:

In memory of

Archibald Alexander

who died Dec. 23 1861 aged 67(?)

James

his eldest son who died April 20, 1865, aged 35 (?)

William

his second son, who died Jan 23, 1870, aged 35

Archibald, son of the above W'm Alexander

who died in 1868, aged 6 (?) weeks

lying with his mother in the necropolis in Glasgow

Eliz'th Brown, wife of John Alexander

who died July 12 1872, aged 28 (?) 

Archibald

his fourth son who died Oct 14 1885 aged 43

Bessie his daughter who died Nov (?) 18 (?) 1877

aged 14 months

Janet Snaipe

wife of Archibald Alexander senior

who died Nov 13 1894, aged 85 (?)

Helen White

wife of John Alexander

who died March 15 1908 aged 75

John Alexander

born 19th Oct. 1830, died 7th Feb. 1927 (?)

And on the pedestal:

Jesus said

I am the resurrection and the life etc.

John XI 25, 26