Still hunting for a solution to a problem posted earlier.  I have a data
table that contains a list of donations, with the name of the donor in column
A and the amount of each donation in column B.  Some donors gave more than
once, and I need to be able to calculate their aggregate donations.  In the
end, I'm only interested in displaying totals for donors who gave more than
$1,600 -- whether through a single donations, or multiple donations.  I want
to display the totals in column C.

What formula will allow me to calculate totals for all donors, including
names that are similar but not exact matches (e.g., grouping PERKINS JOHN W
together with PERKINS JOHN), and then show totals *only* for donors whose
total donations exceed $1,600?

Here's some sample data -- in my actual data table, there are thousands of
rows, and donors have given anywhere from one to ten or more times.  As you
can see, the names aren't always entered the same way.  My early research
indicates that I should maybe use the LEFT function to compare the beginning
characters of names, but please tell me if there's another way.

A                    B    C
Contributor Name    Amount    Over 1,600?
ABBOTT DOROTHY C    1500   
ABBOTT DOROTHY C    15   
ANDREWS KATE    100   
ANDREWS KATE J    50   
BROWN MICHAEL    25   
DALTON KUMI             1400   
FRENCH KATE K    1550
FRENCH KATHERINE K    100   
GORDON NANCY    10   
LINCOLN EDDIE    25   
LINCOLN ELLEN    25   
LINCOLN ELLEN M    1000   
LINCOLN ELLEN M    800   
LINCOLN ELLEN M    50