The wife (Irene) of Louisa (Chiara) Inserra's youngest son, Edward (deceased) is very knowledgeable about the Chiara's. She lives in East Boston, MA. Also Vincent and Theresa Chiara are listed immediately after Louis and Louisa Ianacerra's (Inserra) family, and it's possible the two families lived together in the same residence. The Census indicates that Vincent Chiara owned the property, and that Louis Inserra rented it. It was probably a large house, as opposed to an apartment building. They lived at 105 Everett St., #23, Suffolk County, City of Boston, MA. Also, Vincent and Theresa Chiara are listed in the 1920 Census has both being 63 y.o., and having immigrated from Italy in 1900, and 1908, respectively. Louis Inserra's sister, Salvatrice, married my great great uncle, Ignazio Drago. I hope this helps!
Diane Drago Mimiaga