Short answers, pulled from the story.
Alan Shepard was not the first person in space. Soviet cosmonaut Yuri Gagarin made the first crewed spaceflight on the 12th of April 1961, twenty-three days before Shepard. Shepard became the second person and the first American to travel into space on the 5th of May 1961.
Shepard named his Mercury capsule Freedom 7. He later named a planned follow-on mission, Mercury Spacecraft 15B, Freedom 7 II in honor of his first spacecraft, but that mission was canceled in June 1963.
Shepard was grounded in late 1963 after doctors diagnosed him with Ménière's disease, a condition in which fluid pressure builds up in the inner ear, causing severe dizziness and nausea. The condition was surgically corrected on the 14th of May 1968 by otologist William F. House in Los Angeles, and Shepard was restored to full flight status on the 7th of May 1969.
Alan Shepard was 47 years old when he walked on the Moon during the Apollo 14 mission in February 1971. He was the fifth person and the oldest person to walk on the Moon, and the only member of the original Mercury Seven astronauts to do so.
Yes. During the Apollo 14 mission, Shepard attached a Wilson six-iron head to a lunar sample scoop handle and struck two golf balls on the lunar surface. Wearing thick gloves and a stiff space suit, he swung with one hand. Analysis of high-resolution film scans put the first shot at about 24 yards and the second at about 40 yards.
Alan Shepard died on the 21st of July 1998 in Pebble Beach, California, from complications of chronic lymphocytic leukemia, which had been diagnosed in 1996. His widow Louise died five weeks later, and their ashes were scattered together from a Navy helicopter over Stillwater Cove in front of their Pebble Beach home.