I hate to disappoint you but your mother has no claim to the J.R. 1 well. It is located in the SW quarter of the section and has a spacing of 160 acres which includes only the SW portion of the section (160 acres). Your mother’s acreage is in the northeast quarter so is not part of the spacing of the well. You have to have the minerals lie in the spacing area in order to get royalties. I have attached a copy of the completion order from the well. You can see a dot above the “160” in the SW4. Your acreage lies in the NE4. The well was a fairly poor well anyway, so you didn’t miss much.
http://imaging.occeweb.com/OG/Well%20Records/00000002/OCC_OG_2IIV6VG_1NLQ91U.pdf