Leitrim-Roscommon

In researching my Carlos family I find the spelling of Carlis (one entry spelled Carlos) in the Tithe records ca 1825-1833, but I find Carlisk/Carlick on the Elphin census.The IGI lists a Petri Carlisk, and also lists the same person in a duplicate entry as Petri Carlos. I also find a Patriti Carlis...

Looking for info on Peter Carlos b abt 1809 Kilgefin, Cloonybeirne. He immigrated between 1834-1843.....before the famine. He settled in Wisconsin, (re) married and had 7 children. An ad in the Boston Pilot placed by Thomas Shaughnessy dated 1856 "looking for Peter Carlos, son-in-law from Kilge...