Hi - there very likely is more than coincidence here, but ready to be wrong. My grandmother was Marguerite Tindel (among multiple spellings of the surname), b. Hamilton County, IN abt 1907, died Indianapolis Jan 1936. She was the daughter of Sylvester, who was the son of John M, who was the son of Robert A. According to a biographical sketch on John M from a Johnson County, IN history book written in the 1880s, Robert A. Tindel was a "native of one of the Eastern states", and that "Mr. Tindle's paternal ancestors were Scotch-Irish and were among the early residents of Ohio". John M. was born in Dearborn Co, IN (near Cincinnati), the family then migrated to Shelby County, IN where they were deserted by Robert A. After Civil War service, John M. moves first to Johnson County, Indiana, then to Hamilton County after the death of his first wife and subsequent remarriage. I know nothing of Sylvester other than what can be found in the census data, other than his wife was Lydia, maiden name most likely Fields.
Not suggesting that the Marguerites are one and the same, but I'm extremely hesitant to believe that there's not some family connection somewhere to end up with that (for the time) unique name and same surname.
Thanks!