I have a book titled The R.D. Grant Family History written in 1998 by R.D. Grant. It starts with William James Grant coming to Canada from England in 1870. This is a privately published book on the history of an Ontario branch of the Grant family. I have it posted on the Toronto craigslist and kijiji if anyone is interested in having a look at it. Just search Grant Family to find the post. Let me know if there are any names you want me to check out for you to determine if it relates to your family branch.