Based on the fact that his obituary shows he was actually Lester E. French, born Feb 1894 Worcester, MA and names his two brothers, the following will fill you in on the names of his parents and a sister Ida.
Massachusetts Births, 1841-1915 Name: Lester E. French Event Date: 03 Feb 1894 Event Place: Worcester, Worcester, Massachusetts Father: Robert French Mother: Ida A. Goodrich Volume/Page/Certificate Number: p 594 no 421 Film Number: 1651226 Digital Folder Number: 4147994 Image Number: 601
United States Census, 1900 Name: Lester E French Residence: Providence city, Providence, Rhode Island Birth Date: Feb 1894 Birthplace: Massachusetts Relationship to Head-of-Household: Son Father Name: Robert French Father Birthplace: Massachusetts Mother Name: Ida A French Mother Birthplace: Massachusetts Head-of-household Name: Robert French Gender: Male Marital Status: Single Household Gender Age ParentRobert FrenchM ParentIda A FrenchF William L FrenchM Lester E FrenchM Enumeration District: 0064 Sheet Number and Letter: 15A Household ID: 346 Reference Number: 7 GSU Film Number: 1241508 Image Number: 00175
Rhode Island, State Census, 1905 Name: Lester E French Residence: Providence, Ward 006, E.D. 0065, Providence, Rhode Island Age: 11 Gender: Male Race or Color: White Marital Status: Single Birth Date: Feb 1894 Birthplace: Massachusetts Father's Birthplace: Canada Mother's Birthplace: Canada Relationship to Head of Household: Son Number of Family in the Order of Visitation: 293 Number in this Family: 5 Mother of how many children: Number of these children living June 1, 1905: Digital Folder Number: 4479075 Image Number: 00739 Film Number: 2108632 Household Gender Age Everett A FrenchM Lester E FrenchM William L FrenchM ParentRobert French
United States Census, 1910 Name: Lester E French Birthplace: Massachusetts Relationship to Head of Household: Son Residence: Providence Ward 7, Providence, Rhode Island Marital Status: Single Race : White Gender: Male Immigration Year: Father's Birthplace: Massachusetts Mother's Birthplace: Massachusetts Family Number: 111 Page Number: 5 Household Gender Age ParentRobert FrenchM 48y ParentIda A FrenchF 43y William L FrenchM 21y Lester E FrenchM 16y Everett A FrenchM 8y Ida M FrenchF 3y