Irgens, Christian Frid:
From Business Encyclopedia of the Oldenburg Monarchy
1741-12-30 - Listed in the DAC Roll Books as Underassistent onboard the DAC ship CRON PRINTZEN AF DANMARCK headed for Canton. (DAC Roll Books - RA)
1744-1-8 - Listed in the DAC Roll Books as Underassistent onboard the DAC ship CHRISTIANSBORG SLOT headed for Canton. (DAC Roll Books - RA)
Other
A man of the same name married the widow of Galschiøt, Christen Hansen from Bragenæs in Norway near the very end of the 17th century. Perhaps his grandfather? (PHT 1913:170)