My first 8 dayer was 1958 (I was 12 yo) in New York. Mom took a day off from convention and took us California boys sightseeing in the Big Apple. Convention was held at 2 outdoor venues, Yankee Stadium and the Polo Grounds. 250,000 attended 7,000 baptized. I mostly remember being hot, sweaty, and crowded.
Another 7 or 8 dayer was held in 1963 at the famous Rose Bowl Stadium in Pasedena, southern California. Very hot stadium with no shade cover at all. 108,000 attended. I was 17 and mostly chasing the girls at that convention. It was grueling but I mostly remember meeting a lot of pretty girls, i.e. sisters, from all over the country. Since I was now a 'responsible' young man, I didn't need to sit with my mom and younger brothers. Good memories and I don't remember one thing that was said from the program.
Last 7 or 8 dayer I recall was in Los Angeles, California at Dodger Stadium in 1969. Hot, boring, and I was a married man so I didn't have the fun of chasing the girls at that convention. I worked in security at night after the convention ended and didn't get home till 2:30 am so I mostly slept during the day sessions at the convention. lol
just saying!