There seems to be no mention of Pollock in her papers.
The BBC broadcast a radio programme about Jackson Pollock on 30 December 1970:
BBC Radio 3, 30 December 1970 19.00 Six Modern Artists 5: Jackson Pollock I continue to get further away from the usual painters' tools. I prefer sticks, trowels, knives and dripping fluid paint.... JOHN GOLDING discusses Pollock's achievement with reference to four of his paintings. Produced by JUDITH RUMPUS
but a paper in tape DD202's box says:
“Sound Negative Report” 21.2.74 Prod. Company, 8, 9, 10 Production: Pollock Type of stock and Emulsion No. Zonal System: K Special Lab Instruc. 16/2 be from 7½, 2103/22 Tx take 2, music, tracks 210’/16 mm Zonal signed MJ Parrish
which suggests that it was for a film, created after her BBC years, and was not used.
As for MJ Parrish, another American painter is Maxfield Parrish, but he died in 1966, aged 96, so can't have signed in 1974!
- DD202: "Pollock 2 bands"
- Search results for "Jackson Pollock" 1963-1973 on the BBC Genome Project