Hi Ramsay
one of my ggrandmother's was a Gillespie and I have been stumped with them,
as the family originate in Ireland, but with a bit of luck a couple of her children had children in
1855 which gave me a bit more info on where the came from
I have just started looking into them again
because I have found a cert for a Gillespie marriage and it looked like the witnesses name was Givan
I posted it on here to see if I was right, it has renewed my curiosity

,
and being addicted to family history has given me a kick to see what I can find,
I have a pic of my dad in the army and one of the men in it is named Gillespie, he was from Port Glasgow
in fact I have that posted on here on the armed forces board to see if anyone could help with
it I will see if I can find it and add a link, maybe your sisters husband will recognise him,
Elaine
Added
http://www.rootschat.com/forum/index.php/topic,268300.0.htmlmy dad is far right 2nd row
mr Gillespie middle front row