1960's / Holliston, MA / Oblong-Shape / 5 minutes? / Large Oblong shape emits smaller bright lights that emerge then return to craft

My father told me about a conversation that my uncle ((name deleted)) had with him, perhaps a few years after my sighting (previously submitted 12/31/06), where he spotted a large cigar shaped object in the sky after work near where he lived in Holliston, Massachusetts.  My father said that he told him my uncle witnessed smaller lights leave the "mother" craft and disperse then return to the ship and be taken up inside of it, before the larger craft disappeared.  That is all I can remember from an event that my uncle witnessed probably sometime in the late 1960's, perhaps early 1970's.
Witness indicates that the date of the incident is approximate.  PD