The basic Hibbard genealogy is Augustine George Hibbard, _Genealogy of the Hibbard Family_ (Hartford, Case Lockwood & Brainard Company, 1901) which is available on microfilm through Family History Centers if you can't find it through a library.There was also an article in the NEHG Register, vol. 51 "Descendants of Robert Hebert."
Briefly, your Robert was born in Salem, now Beverly, Essex, MA, and bp. Mar. 7, 1648. He was the son of Robert the immigrant and wife Joan (Joanna).Her name is sometimes given as Luffe.
The younger Robert married Mary, daughter of Edward Walden of Wenham, MA.In 1700 Robert removed to Windham, CT to join his sons Robert and Joseph.Robert died at Windham April 29, 1710, Mary died at age 81 March 7, 1736.
Children, all b. Wenham, are Mary, Aug 18, 1674; Robert, June, 1676; Joseph, May 15, 1677; Nathaniel, 1680; Ebenezer, May, 1682; Martha, 1684; Josiah, 1686; Hannah, 1691, m. Joseph Talcott; Sarah, 1694; Abigail, 1694; Lydia, 1699.