what happened to the third brother on blue bloods
List of Blue Bloods characters Frank married Mary Margaret Reagan in the early 1970s, and they have four children together: Danny, Erin, Joe, and Jamie. Each of Frank's sons followed him into the NYPD: Danny (Donnie Wahlberg) is a Detective 1st Grade and lead investigator with the 54th Precinct's Detective Squad; Joe was a Detective with the Warrants Squad who was murdered on the orders of his partner Sonny Malevsky (Michael T. Weiss), the leader of a corrupt gang of police officers called the Blue Templar;[2] and Jamie (Will Estes) is a patrol officer assigned to the 12th Precinct with a law degree from Harvard University. Frank's only daughter, Erin (Bridget Moynahan), is also in law enforcement as a Manhattan Assistant District Attorney. Erin was promoted to Deputy Bureau Chief of the NYCDA's Trial Bureau in 2013.[3]
My Three Sons The series originally featured William Frawley as the boys' live-in maternal grandfather, William Michael Francis "Bub" O'Casey. William Demarest, playing Bub's brother, "Charley", replaced Frawley in 1965 due to Frawley's illness. In September 1965, eldest son Mike married, and his character was written out of the show. To keep the emphasis on "three sons", a new son named Ernie was adopted. In the program's final years, Steven Douglas remarried and adopted his new wife's young daughter Dorothy ("Dodie").