Yes, you are right about Bianco. He was made into the Colombo Family in 1963 so that he would have an easier job to work out a truce between the warring factions. Gallos seems to have had respect for him as a persona but didn´t recognize him as an authority until he was made. He was appointed caporegime in 1970 but without a crew. I think Colombo had promised him at least a couple of soldiers but this promise never materialized. Eventually, Colombo and Bianco had a fall out and Bianco was demoted to the rank of a soldier. According to Greg Scarpa, Bianco switched to the Patriarca Family in 1973. That´s two years after the Colombo shooting.
Tameleo was originally a Brooklynite before moving to Rhode Island. But I haven´t seen anything (evidence wise) that suggests that Tameleo had been a Bonanno member.
Robert DiBernardo started out as an associate with the DeCavalcantes but wasn´t made with that Family. He transfered to Castellano before being made in 1977 and was first put in the same crew as Tommy Bilotti (not sure Bilotti was a capo at that time), before switching to Zappi crew.