The National Archives Census 1901 and 1911 for Ireland both shows the Maxwells still in tyrone county in the township of Inisclan which looks to be about 10 miles south of Strabane and off of Orchard Road. My gr gr gr grandfather William Shannon leased one of the properties near Lisdroo and Orchard Roads from Rev Peter Maxwell in the late 1800's and eventually purchased the property. His sons continued to farm the property and even added another parcel that had been a Maxwell property. There is a lot of family info on those two censuses if you go to the individuals pages.