I, too, have Krock (sometimes Kroch, Crock or Krack) relatives from Northampton County. Some of my (distant) cousins wound up in the Wind Gap area, but my line, at least, settled in Northumberland County (Delaware Township, Turbot, Watsontown and Milton) by the middle of the 19th century). My Krocks are the descendants of Philip and Salome Krock/Krack (my maternal great-great-great grandparents), who seem to have spent their entire lives in Northampton County, mostly in Moore Township near Easton. I have so far been unable, however, to "break the code" Philip and Salome and confirm the alleged Dutch (not Pennsylvania Dutch) origins of the family. Do you have any information along those lines?
Thanks in advance for any info you could provide.