Festival issued a 20-hits compilation of Pitney's hits, sometime between 1976 and 1978 on their Interfusion label that carried the two tracks you mention, RC. Naturally Festival had to seek clearance from Warners because that company was distributing the Bronze label between 1974 and 1975, which carried the songs. Ironically, Festival later acquired the Bronze label as they'd issued Manfred Mann's Earth Band's "Blinded By The Light" and "You Angel, You" on that label.
Pretty-much "standard fare" in a Gene Pitney compilation, all except that last track on Side 2. It's not all that often the B-side of "Love My Life Away" as a single, gets an outing on any of Pitney's compilations. "I Laughed So Hard I Cried"is truly a rarity!