Pope Paul VI visited this area on October ?, 1965.
"A" = the missing date.
"F" = Is the first digit of the number of years this object supposed to endure.
"E" "J" = The total number of letters in the first and last name of the person that the garden is dedicated to. I worked with this person and he cherished and watched over this park since childhood.
"B" = Add the digits of his year of birth. Then add the digits of his year of death. Take the smaller number and subtract it from the larger number.
"G" = The 3rd digit in the height of the Unisphere
"CD" = The day the Unisphere was presented to the 1964-65 World’s Fair. Not the month or year.
"H" is the fourth digit of the FMP number.
"I" = Take the last 2 digits of the FMP number. Add them together and then divide by 2.
***Thank you to mmacgown, MBomber33 and CP590 for their help and input on my first puzzle.***
You can check your answers for this puzzle on Geochecker.com.