Power of Attorney

Know all by these presents that the undersigned hereby
constitutes and appoints each of Craig Morgan, Valerie Mangine, Kristy
Prater and Mary Stluka, signing singly, the undersigned's true and lawful
attorney-in-fact to:

 (1) execute for and on behalf of the undersigned, in the
undersigned's capacity as an officer and/or director of
Jack Henry & Associates, Inc. (the "Company''), Forms
3, 4, and 5 in accordance with Section 16(a) of the
Securities Exchange


Act of 1934 and the rules thereunder;

(2) do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to
complete and execute any such Form 3, 4, or 5, complete
and execute any amendment or amendments thereto; and
timely file such form with the United States S urities and
Exchange Commission and any stock exchange or similar
Authority; and

(3) take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of
such attorney-in-fact, may be of benefit to, in the best
interest of, or legally required by, the undersigned, it
being understood that the documents executed by such
attorney-in-fact on behalf of the undersigned pursuant
to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-
fact may approve in such attorney-infact's
discretion.

The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the exercise
of any of the rights and powers herein granted, as fully to all Intents and
purposes as the undersigned might or could do if personally present,
with full power of substitution or revocation, hereby ratifying and
confirming all that such attorney-in-fact, or such attorney-in-fact's
substitute or substitutes, shall lawfully do or cause to be done by virt ue of
this power of attorney and the rights and powers herein granted. The
undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not
assuming, nor is the Company assuming, any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange Act of
1934.

The Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to
the undersigned's holdings of and transactions In securities Issued by the
Company, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power
of Attorney to be executed as of this 4th day of May, 2017.

 Kevin D. Williams