I came across a 1920 census entry for Elizabeth Planno, born in Chicago, daughter of Leo and Anna Scaletta, with a 3-year old son Tony Planno, born in Wisconsin. Elizabeth is reported as Divorce.
See: https://www.familysearch.org/ark:/61903/3:1:33SQ-GR6H-3BV
Could this Elizabeth/Isabella Scaletta, daughter of Loreto Scaletta and Anna Guagliardo, and her son Antonio Gugliemino?