Pat Shannahan (died 2020[1]) was a sample clearance expert.
Shannahan worked with artists such as the Beastie Boys, Janet Jackson, and The Avalanches to research and clear many of the samples used in their music.
[2] Shannahan worked for over 20 years clearing the use of samples for musical artists.
[2] One of the earliest albums she worked on was an unnamed Prince Paul release.
[3] The Avalanches album Wildflower contained many samples, all of which were cleared by Shannahan.