For this Duncan Allen there are 4 different names on Yasni.
In the ranking of the most common first names Duncan Allen is on position 4587.
Male first name (English): Duncan, brown (haired) warrior; Old Irish (Word format); donn = brown; chadh = the warriors
Male first name (English, Scottish): Allen; Celtic (Word format); al = the rock, came during the Middle Ages with the Normans to England significance not sure clarified, perhaps of Celtic and Breton 'al' (rock)