SECTION 16

POWER OF ATTORNEY





 I, DOUGLAS H. RALSTON, do hereby constitute and appoint

 Granville Tate, Jr. my true and lawful attorney-in-fact, who acting

 singly is hereby authorized, for me and in my name and on my behalf

 as a director, officer and/or shareholder of TRUSTMARK

 CORPORATION to (i) prepare, execute in my name and on my

 behalf, and submit to the U.S. Securities and Exchange Commission

(the "SEC") a Form ID, including any necessary amendments thereto,

and any other documents necessary or appropriate to obtain codes and

passwords enabling me to make electronic filings with the SEC of

reports required by Section 16(a) of the Securities Exchange Act of

1934 or any rule or regulation of the SEC in respect thereof; and (ii)

prepare, execute and file any and all forms, instruments or documents,

including any necessary amendments thereto, as such attorneys or

attorney deems necessary or advisable to enable me to comply with

Section 16 of the Securities Exchange Act of 1934 or any rule or

regulation of the SEC in respect thereof  (collectively, "Section 16").







 I do hereby ratify and confirm all acts my said attorney shall

do or cause to be done by virtue hereof.  I acknowledge that the

foregoing attorney-in-fact, serving in such capacity at my request, is

not assuming, nor is TRUSTMARK CORPORATION assuming, any

of my responsibilities to comply with Section 16.





 This power of attorney shall remain in full force and effect

until it is revoked by the undersigned in a signed writing delivered to

said attorney-in-fact or the undersigned is no longer required to comply

with Section 16, whichever occurs first.



 WITNESS the execution hereof this 26 day of January,

2016.





                                       /s/  Douglas H. Ralston

 DOUGLAS H. RALSTON