There is a ROBERT ALLAN and his wife MARY ( the latter b1812 d1874) buried in WOODSIDE CEMETERY in Paisley in the lair of a WILLIAM ALLAN.LAIR NO. 373.2833
Unfortunately there were lots of ALLANs in Paisley at the beginning of the 19th century.
I am hunting for my ggg-grandfather's brothers.He was ALEXANDER ALLAN (1792-1857).His brothers were: JOHN b11.3.1790 JAMES b25.7.1796 WILLIAM b23.9.1798 ROBERT b9.11.1800 ARTHOUR b8.5.1803 ANDREW b22.9.1805
All born in Paisley, children of JOHN ALLAN and BETHIA WATT.I have no idea what happened to all of them;