This is a long worksheet and need a formula, but don't know if possible.
A COLUMN B COLUMN C COLUMN
Doe, John Jan 05 a
Doe, Jane Jan 16 a
Presley, Elvis Jan 22
Doe, Jane Jan 30 a

All the previous data will be in SHEET 1
Now, in SHEET 2 :
COLUMN A = all possible names in COLUMN A SHEET 1,
written by me.
The formula will be used in COLUMN B, SHEET 2 and will tell me
which was the last date for example DOE,JANE had a letter "a"
(Jan 30 should be the result of the formula)
I'm thinking in VLOOKUP formula but don't know how to
organize it.
Thanks.