History
The Independent Theatre (from 1934 The Independent Theatre Ltd), was an Australian dramatic society founded in 1930 by Dame Doris Fitton, and was also the name given to the building it occupied from 1938. It was named for London's Independent Theatre Society founded by J. T. Grein and was one of several amateur drama groups of high standard which sprang up in Sydney, Australia in the 1930s to fill the gap left by the closure of all but two professional theatres (the last spoken-word theatre to close was The Criterion in 1936, leaving only the Tivoli, which ran vaudeville, and the Theatre Royal, which played musicals and ballets). The range of plays essayed was impressive – from classics to avant-garde pieces, from recent West End and Broadway successes (sometimes the Australian premiere) to offerings from local dramatists. The death of Doris Fitton's co-producer Peter Summerton in 1969 put extra strain on her deteriorating health, and with no-one able or willing to fill her shoes, the Independent closed in 1977. It was to reopen in 1998, continuing its tradition as a training ground for young actors and playwrights.
The cache
Find the theatre's founder on the pavement then use the information surrounding her to locate GZ.
A = Number of apostrophes in the quote from Shakespeare
B = Letter count for the last letter of Doris's post-nominals
C = 2nd digit of DOB MINUS 3rd digit of date of death
D= second digit of the street address
E = The square root of the number of &'s in the Shakespearan quote
Check sum (of all decimal minutes) = 19
And yes the Check sum is correct. If you don't get is first time; think - don't expect to be spoon fed
The cache is at S33 50.ABC E151 12.DEB