For this Alan Sinclair there are 10 different names on Yasni.
In the ranking of the most common first names Alan Sinclair is on position 4581.
Male first name (German, English, Scottish): Alan, Celtic (Word format); al = the rock, came in the Middle Ages with the Normans to England significance not sure clarified, perhaps of Celtic and Breton 'al' (rock)
Male first name (English): Sinclair, Old French (as a first name surname), a family name that goes back to a Norman-French place name 'St. Claire'