An unexpected connection to Paul Erdős

In September, 2014, I was invited by Prof. Richard Schweickert (at Purdue University) to present on my current research, which uses network science to investigate language processing. This visit was made possible by funds that Benjamin J. Winer (a Professor of Psychological Sciences at Purdue University, known for his work in statistical analysis in the social sciences--perhaps you've used his textbook) left to Purdue to support a lecture series in Mathematical Psychology.

During that visit, I learned that Prof. Lisa Goffman (now at University of Texas-Dallas), whom I had known previously via her work as a fellow language scientist and as an Associate Editor of the journal Language & Speech, was also the daughter of Casper Goffman (a Professor of Mathematics at Purdue University), who wrote the article on the Erdős number:
 

Goffman, Casper (1969). And what is your Erdős number? American Mathematical Monthly, 76, 791. doi:10.2307/2317868.