Bill Clinton got about 10,000 index card, calling for his president election.
Reagan Library collected his cards with tiny handwriting.
**
David Rockefeller’s Rolodex Is Astonishing. Here’s a First Peek.
Bank executive met with nearly every world leader for 50 years, filled out some 200,000 note cards
POCANTICO HILLS, N. Y.—Some might say David Rockefeller, a scion of America’s greatest fortune and the veteran chief executive of Chase Manhattan Bank, was a dedicated networker long before the age of Facebook.
That would grossly understate his horizons. Mr. Rockefeller recorded contact information along with every meeting he had with about 100,000 people world-wide on white 3-by-5-inch index cards. He amassed about 200,000 of the cards, which filled a custom-built Rolodex machine. He kept the 5-foot high electronic device...
https://www.wsj.com/articles/david-rockefellers-famous-rolodex-is-astonishing-heres-a-first-peek-1512494592?mod=e2tw