Question: Who created the play in 1975 featuring former a Royal Shakespeare Company member as the mother?

Context articles: World Theatre Season
Rose Hill (actress)
First Folio Theatre
Footfalls
The Other Place (theatre)
The Shakespeare Project
Swan Theatre, Stratford-upon-Avon
Royal Shakespeare Theatre
Lear (play)
Courtyard Theatre

The World Theatre Season was a festival of foreign plays held annually at the Royal Shakespeare Company's Aldwych Theatre in London from 1964 to 1973, with a final season in 1975.
 It originated as a one-off celebration in 1964 organised by Peter Daubeny and the Royal Shakespeare Company as part of the celebrations for William Shakespeare's quatercentenary.
 In the 1950s, Peter Daubeny had presented foreign theatre companies, which gave him a knowledge of foreign theatre and served as a prelude to the World Theatre Seasons.
 Seven companies appeared at this initial World Theatre Season: Comédie Française; Schiller-Theater; Peppino de Filippo's Italian Theatre; Abbey Theatre; Polish Contemporary Theatre; Greek Art Theatre; and Moscow Art Theatre.
Rose Lilian Hill (5 June 1914 – 22 December 2003) was an English actress and operatic soprano, who remains best known for her role as Madame Fanny La Fan in the British television series "'Allo 'Allo!
".
 She was a former member of the Royal Shakespeare Company.
First Folio Theatre is a not-for-profit theater company affiliated with the Actors' Equity Association.
 Founded in 1996, First Folio, originally named First Folio Shakespeare Festival, is located on the grounds of the Mayslake Peabody Estate in Oak Brook, Illinois, United States.
 First Folio utilizes the "Folio Method" as developed by Patrick Tucker (at one time of the Royal Shakespeare Company), who first introduced his approach to American actors, directors and teachers in a series of workshops sponsored by the Riverside Shakespeare Company of New York City at The Shakespeare Center beginning in 1982, which led to an awakened interest in the First Folio.
Footfalls is a play by Samuel Beckett.
 It was written in English, between 2 March and December 1975 and was first performed at the Royal Court Theatre as part of the Samuel Beckett Festival, on May 20, 1976 directed by Beckett himself.
 Billie Whitelaw, for whom the piece had been written, played May whilst Rose Hill voiced the mother.
The Other Place is a black box theatre on Southern Lane, near to the Royal Shakespeare Theatre in Stratford-upon-Avon, England.
 It is owned and operated by the Royal Shakespeare Company.
 In 2006, an earlier version of the theatre closed and reopened as the temporary and larger Courtyard Theatre while the Royal Shakespeare and Swan Theatres were redeveloped.
 In March 2016, The Other Place was reinstated as a 200-seat studio theatre.
In October 1983, the Riverside Shakespeare Company, then New York City's only year-round professional Shakespeare theatre company, inaugurated "The Shakespeare Project", based at the theatre company's home on the Upper West Side of Manhattan, The Shakespeare Center.
 "The Shakespeare Project" was the first major New York residency of actors from the Royal Shakespeare Company - with Edwin Richfield, Heather Canning, Christopher Ravenscroft, Jennie Stoller and John Kane (the later two from Peter Brook's "A Midsummer Night's Dream") - for a week of public workshops, panel discussions, seminars and performances at the company's Upper West Side theatre, The Shakespeare Center.
 The event was launched at a luncheon in the Shakespeare Room of the Algonquin Hotel attended by Joseph Papp, Helen Hayes, Frank Rich, Gloria Skurski, W. Stuart McDowell, and members of the Royal Shakespeare Company in mid October 1983.
 According to the "New York Times", over one thousand actors, students, teachers and stage directors, from the ages of 15 to 87, signed up for 22 sessions taught by some of the leading actors from London's Royal Shakespeare Company.
The Swan Theatre is a theatre belonging to the Royal Shakespeare Company in Stratford-upon-Avon, England.
 It is built on to the side of the larger Royal Shakespeare Theatre, occupying the Victorian Gothic structure that formerly housed the Shakespeare Memorial Theatre that preceded the RST but was destroyed by fire in 1926.
The Royal Shakespeare Theatre (RST) is a 1,040+ seat thrust stage theatre owned by the Royal Shakespeare Company dedicated to the English playwright and poet William Shakespeare.
 It is located in the town of Stratford-upon-Avon – Shakespeare's birthplace – in the English Midlands, beside the River Avon.
 The Royal Shakespeare and Swan Theatres re-opened in November 2010 after undergoing a major renovation known as the Transformation Project.
Lear is a 1971 three-act play by the British dramatist Edward Bond.
 It is an epic rewrite of William Shakespeare's "King Lear".
 The play was first produced at the Royal Court Theatre in 1971, featuring Harry Andrews in the title role.
 It was revived by the Royal Shakespeare Company in 1982 with Bob Peck, and revived again at the Crucible Theatre, Sheffield, in 2005 with Ian McDiarmid.
The Courtyard Theatre was a 1,048 seat thrust stage theatre in Stratford-upon-Avon, Warwickshire, England operated by the Royal Shakespeare Company (RSC).
 It temporarily replaced The Other Place theatre during the redevelopment of the Royal Shakespeare (RST) and Swan Theatres.
 The last performance at the Courtyard Theatre took place in 2010.
 It was replaced by The Other Place in 2016, which returned as a 200-seat studio theatre in 2016.