Hi! It was with great interest that I came across your Email as I had just returned from the archives in Toronto. I looked up the Charles Collens that married Martha Brown . We also have a Beaumont James Brown that married Clara Viola Collens ,and were interested to see if Charles was her brother and that perhaps they both married Browns. And if these Browns were brother and sister.I don't know of a Mather, sorry. Please if you could let me know of the Brown connection. Thanks so much Elizabeth.