Looking for information on a Joseph Yonsky family (Jansky/Jhonesky – many spelling variations on this surname – Yonsky/Yonski/Yonskie/ Jansky/Janski/ Yansky/Yanski)

Joseph Yonsky married Louise Barbra / Louise Piska ?

Their children:
Frank - b. 1861 in Bohemia, d. 1936 in Rockland County, NY – married Anna Zelenka, b. 1860 in Bohemia, d. 1936 in Rockland County, NY

Other children possibly belonging to this family:
Joseph - b. 1853 in Bohemia, d. 1908 in Rockland County, NY – married Marie/Mary Zelinka, b. 1855 in Bohemia, d. between 1920 – 1930 in Rockland County, NY