Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Dana Gioia:

"

On February 23, 1980, Gioia married Mary Elizabeth Hiecke. The couple met while they were graduate students at Stanford.[1] They had three sons, one of whom died in infancy. His poem "Planting a Sequoia" is based on his experience of losing his infant son.[citation needed]