Dear ev, James Alexander d 1869 is a GREAT lead for me as his parents on the DC are exactly what I see on John Alex., and Elizabeth Alex., DCs Yes, they could easily be brothers & a sister so I will work on the North Craigo, Logie Pert connection and hopefully bring new life to a very old investigation that ran out of new ideas long ago. The Brechin or Montrose Newspapers from that time may help for starters. The 1861, 1851, 1841 Census are possible and where buried is more fertile ground ... perhaps one of the Montrose ones as Ogilvie Taylor the brother in law is from near there. I can but hope to find a birth record for him ~ 1816/7 (Fettercairn or Edzel perhaps) as that would be a perfect find!
Any more gems on the subject would be most welcome!
Many thanks for your help, nw_whiskers.