Possible Relative of your Robert Brown Amos:
https://familysearch.org/ark:/61903/1:1:QVGR-9J8X
Robert Edward Amos
Find A Grave Index
I have his birth: no further information is available without ordering his birth certificate giving the reference below - information available here: http://www.gro-scotland.gov.uk/registration/how-to-order-an-official-extract-from-the-registers
Have you tried the Lothians FHS? They have a Facebook page if you're on Facebook. Thy would put a cal-lout in their magazine too, I'm sure.