For this Duncan Alan there are 17 different names on Yasni.
In the ranking of the most common first names Duncan Alan is on position 4574.
Male first name (English): Duncan, brown (haired) warrior; Old Irish (Word format); donn = brown; chadh = the warriors
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)