This is a single donation. The party that you wrote the check to is the charitable organization that you should list. The organization must be a qualified charitable organization as defined by the IRS.
To enter a donation made by cash or check:
Select Federal Taxes
Select Deductions and Credits
Scroll down and select Show More at Charitable Donations
Select Start or Update next to Donations To Charity
Select Add a Charity
Enter the name and indicate that you donated money
Read the article below for more information on a "qualified charitable organization".
https://ttlc.intuit.com/replies/5521735