The Path To A Professorship Is Multigenerational

Unsurprising (similar observations have been conventional wisdom since the time of the American Revolution), but appropriate to acknowledge.

Using a survey of 7218 professors in PhD-granting departments in the United States across eight disciplines in STEM, social sciences, and the humanities, we find that the estimated median childhood household income among faculty is 23.7% higher than the general public, and faculty are 25 times more likely to have a parent with a PhD. Moreover, the proportion of faculty with PhD parents nearly doubles at more prestigious universities and is stable across the past 50 years.

From here.