Hi Karen: John Hendry Gowanlock was my grandfather's brother, so I have most of the info on them including a picture of the family (let me know if you want a copy).
As far as I know the Gowanlocks of Glenboro Manitoba originated in Chatham, Quebec (i.e., Ab Gowanlock and descendants). However, our Ontario family (descendants of William and Christian Gowanlock) had/has people in and around Deloraine, Manitoba.
Contact me at
bradley@bmts.com to help me know your Gowanlock interest and info. Hoping to hear from you!