Chocolate Chip Muffin (State Muffin?)

The chocolate chip muffin is (perhaps) the official state muffin of Texas according to the Wikipedia, but the Texas state legislature passed no such law.
 
Chocolate chip muffins became nationally popular in bakeries in the 1960s.
   
   
Austin-American Statesman
State symbols, cap repair, property appraisers, hearts on the lawn
Monday, January 29, 2007
 
Q: Is the chocolate chip muffin the Texas state muffin? Wikipedia says so, but I could find no documentation. I e-mailed my state representative and got no response. (Is there some secret code to get a response from an elected public servant?) I’m a Texas food historian, and I like to be accurate.
— Barry Popik
 
A: Not according to the Texas State Library and Archives Commission, keeper of the list of official state symbols (http://www.tsl.state.tx.us/ref/abouttx/symbols.html). State symbols are designated by the Legislature.
 
Food items are on the list (state dish: chili; state snack: tortilla chips and salsa) but not muffins. Texas has official pastries: sopaipilla and strudel.
 
Wikipedia has its limitations and is incorrect on more than muffins. For example, when I checked, the Wikipedia list of Texas symbols had the state sport as football. It’s actually rodeo.
   
Wikipedia: Muffin
Several states of the United States have a state muffin:
Minnesota — blueberry muffin
Massachusetts — corn muffin
Hawaii — coconut muffin
New York — apple muffin
Washington — blueberry muffin
California — Poppyseed muffin
Texas — chocolate chip muffin
   
30 November 1944, New York Times, pg. 20 ad:
HOT MUFFINS
Make them with Duff’s
for TASTY VARIATIONS add:
CHOCOLATE CHIPS FRUIT
CHEESE NUTS or JELLY
Duff’s Hot Muffin Mix
   
10 November 1965, Vidette Messenger (Valparaiso, IN), pg. 15 ad:
Blueberry and Chocolate Chip
MUFFINS
6 for 43c
 
28 April 1966, Newark (OH) Advocate, pg. 37? ad:
Chocolate Chip Muffins
Just the thing for breakfast, lunch, or snacks! Delicious muffins laced generously with chocolate chips!
49c dz.