I have a copy of HeLynn Carrier's manuscript and checked it for your Rhoda. Did not see her listed or Daniel Calkins. I do suggest that you do some work with the Sharon Vital Records that would be located at the CT State Library in the Barbour Collection. I think that this is also available on micorfilm through the LDS. Also, NEHGS may have this on microfilm now and they do have several volumes on Sharon that are available on mail loan. Best of luck.