Question About Counting

Still learning crystal reporting but have a question:

I have three columns of data. Author 1, Author 2 and Author 3. A workers name will be in any of these columns for multiple entries. How would I go about counting them and having a report at the end. I do not have a database of names to compare them to. The data would look like. Any help would be great as I need a kick in the right direction. Thank you!

Item     Author 1     Author 2     Author 3   
1        Bob          Tom          Larry  
2        Larry        Tom          Bob

I would need a report that spits out:

Name    Total  
Bob     2  
Tom     2  
Larry   2