David Allan (after) ( 1744 - 1796 ) was a British painter. David Allan (after) s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 1832.02 USD for A group portrait of the Spreull family at Charing Cross, Glasgow, James Spreull, full-length, holding a woodcock with a gundog a in 2004