@ Bernard Cucules. Bernard can't possibly have had the Americanized version of his Lithuanian name since there's never been an indication he traveled to the United states as did his son Thomas. Thomas did spell his name one time "Cucules" on his Intent to Naturalize but otherwise the son and his 8 children used the Americanized sounding of the name, they chose to spell "Kootsillas".It was the name found on son Thomas Kootsillas' death certificate... and it was oldest son William Peter Kootsillas who reported hsi father's death--but that his details are hardly a firm conclusion without supportive documentation. Photocopies of the line's existing documents are found on FamilySearch., specifically in the memories and Sources sections Of Thomas Kootsillas, FamilySearch Person ID L1B2-H3G by this writer, one of his great grandsons.
Bernard's great grandaughter Evelyn Kootsillas b 1923 d 1999 told her son this was the correct spelling she was told as a youngster by her widow mother, Marie Michael (Mikutis) b 1900.Chicago (reportedly). Evelyn's father Thomas J Kootsillas died in 1933 when she was only 9; there were no documents in her surcviving papers indicating the Lithuanian surname of her grandfather or HIS father.. She was, however, accurate in the Lithuanian spelling of her Mother's original name and Cusules does match her father's intent to naturalize document. So there is some credibility in her memory. The activist descendants of this line is just now moving to research their line back to Lithuania and the search is on among surviving descendants for the papers belonging to Thomas d 1923 and Magdalena Navickas d 1939.