As this is my first post I would like to say hello to everyone from Australia

. Although we all have blocks in the information we are able to find, I am unable it seems, to go back or find the relevant information on the following. All I have is this.
Robert Allan married Elizabeth Thompson February 7, 1764, in East Lothian, Scotland . No Birth of death dates for either. Their children only birth dates Elizabeth Allan 1766, Robert Allan 1767, James Allan 1770 my direct line, Margaret 1772, Janet 1780, Mary Allan 1782 and Thomas 1785. All the children were born in Leith, Midlothian, Scotland (2 miles north of Edinburgh) James Allan born 13th April 1770 my direct line married a Margaret Kelso born aprox 1775. I cannot find a marriage certificate or any information on Margaret, no matter how hard I have tried.
Looking back on the research through Scotlands People going way back to Robert Allan and Elizabeth Thompson one particular witness to each birth was a George Thompson and John Paterson.
If anyone can help it would be so appreciative.