About Us

Cathy R. Sheffield, CAP®, CFRE, CSPG, FCEP

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Cathy is the Founder and President of ThinkGiving.  Cathy  

is on a mission to help nonprofits raise more planned and major gifts. Cathy is a nationally recognized planned giving thought leader with 25-years in healthcare and higher education. From the moment you meet Cathy, you will recognize her enthusiasm for her work, appreciate her collaborative method for achieving results for both donors and nonprofit organizations alike, and welcome her sense of humor. 


Cathy serves on the American Council on Gift Annuities Board of Directors, is the current President of the Fort Worth Metro Chapter of AFP and was the 2017 Board Chair of the National Association of Charitable Gift Planners.  Cathy is a faculty member of the American Institute for Philanthropic Studies which administers the Certified Specialist in Planned Giving designation program. 

Cathy received her MBA from Texas Christian University and her undergraduate degree from North Dakota State University.  


Cathy received her MBA from Texas Christian University and a Bachelor of Science from North Dakota State University. Cathy is a Certified Fundraising Executive (CFRE), Chartered Advisor in Philanthropy (CAP®), Certified Specialist in Planned Giving (CSPG), and a Fellow in Charitable Estate Planning (FCEP). 

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Siouxsie Sheffield

Siouxsie joined ThinkGiving in 2017 and serves as the

 Chief Mascot and Morale Officer.  Siouxsie love parks, 

Charlee Bear dog treats, green beans & her pink Sock Monkey! 


Siouxsie is a graduate of the PetSmart puppy training academy.




We are Members of:

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