Hi Larry,
before my father joined I./JG26 he was observer in 1.(F)122. He told me that he started to flew in that order : Do17 > He111 > Ju88
Now I´ve checked this page
http://www.luftwaffedata.co.uk/wiki/...._122_Apr_1940
there it starts at 30 Apr 1940 with Ju88.
Also I got this info for you (unfortunately without date) :
1.(F)/22 - Sola-Stavanger JU88D1
2.(F)/22 - Vaernes, Norway Do17P
Cheers - Rainer