Bob Carroll, one of the creators and writers of I Love Lucy, died at the age of 87. He and his writing partner Madelyn Pugh Davis were on the writing staff of I Love Lucy from beginning to end. For the first four seasons they and the third creator (Jess Oppenheimer) wrote every episode, while in the fifth season the writing staff expanded to a staggering five writers.
The TV Week obituary mentions some of their other credits. As you can see from this list, they were mostly associated with Lucille Ball and Desi Arnaz, both together and separately (after Ball and Arnaz split up, they wrote for Ball's shows but they also worked on shows that Arnaz created, like "The Mothers-in-Law").