Answer the question at the end by quoting:

Dench was born in Heworth, North Riding of Yorkshire. Her mother, Eleanora Olive (nee Jones), was born in Dublin, Ireland. Her father, Reginald Arthur Dench, a doctor, was born in Dorset, England, and later moved to Dublin, where he was brought up. He met Dench's mother while he was studying medicine at Trinity College, Dublin.
On 5 February 1971, Dench married British actor Michael Williams. They had their only child, Tara Cressida Frances Williams, an actress known professionally as Finty Williams, on 24 September 1972. Dench and her husband starred together in several stage productions and on the Bob Larbey British television sitcom, A Fine Romance (1981-84). Michael Williams died from lung cancer in 2001, aged 65. They have one grandchild, Finty's son Sam Williams (born in 1997). Dench has been in a relationship with conservationist David Mills since 2010. During a 2014 interview with The Times magazine, she discussed how she never expected to find love again after her husband's death, "I wasn't even prepared to be ready for it. It was very, very gradual and grown up ... It's just wonderful." In early 2012, Dench discussed her macular degeneration, with one eye "dry" and the other "wet", for which she has been treated with injections into the eye. She said that she needs someone to read scripts to her. She also underwent knee surgery in 2013, but stated that she recovered from the procedure well and "It's not an issue for me." Dench has been critical of prejudice in the movie industry against older actresses. She stated in 2014, "I'm tired of being told I'm too old to try something. I should be able to decide for myself if I can't do things and not have someone tell me I'll forget my lines or I'll trip and fall on the set"; and "Age is a number. It's something imposed on you ... It drives me absolutely spare when people say, 'Are you going to retire? Isn't it time you put your feet up?' Or tell me [my] age." In 2013, she spoke about her personal religious faith. Dench, a Quaker, said "I think it informs everything I do ... I couldn't be without it".

Has she had any other health issues?

She also underwent knee surgery in 2013, but stated that she recovered from the procedure well and "It's not an issue for me."

Some context: Carousel is the second musical by the team of Richard Rodgers (music) and Oscar Hammerstein II (book and lyrics). The 1945 work was adapted from Ferenc Molnar's 1909 play Liliom, transplanting its Budapest setting to the Maine coastline. The story revolves around carousel barker Billy Bigelow, whose romance with millworker Julie Jordan comes at the price of both their jobs. He participates in a robbery to provide for Julie and their unborn child; after it goes tragically wrong, he is given a chance to make things right.
The cast album of the 1945 Broadway production was issued on 78s, and the score was significantly cut--as was the 1950 London cast recording. Theatre historian John Kenrick notes of the 1945 recording that a number of songs had to be abridged to fit the 78 format, but that there is a small part of "Soliloquy" found on no other recording, as Rodgers cut it from the score immediately after the studio recording was made. A number of songs were cut for the 1956 film, but two of the deleted numbers had been recorded and were ultimately retained on the soundtrack album. The expanded CD version of the soundtrack, issued in 2001, contains all of the singing recorded for the film, including the cut portions, and nearly all of the dance music. The recording of the 1965 Lincoln Center revival featured Raitt reprising the role of Billy. Studio recordings of Carousel's songs were released in 1956 (with Robert Merrill as Billy, Patrice Munsel as Julie, and Florence Henderson as Carrie), 1962 and 1987. The 1987 version featured a mix of opera and musical stars, including Samuel Ramey, Barbara Cook and Sarah Brightman. Kenrick recommends the 1962 studio recording for its outstanding cast, including Alfred Drake, Roberta Peters, Claramae Turner, Lee Venora, and Norman Treigle. Both the London (1993) and New York (1994) cast albums of the Hytner production contain portions of dialogue that, according to Hischak, speak to the power of Michael Hayden's portrayal of Billy. Kenrick judges the 1994 recording the best all-around performance of Carousel on disc, despite uneven singing by Hayden, due to Sally Murphy's Julie and the strong supporting cast (calling Audra McDonald the best Carrie he has heard). The Stratford Festival issued a recording in 2015.
Who else contributed over the years for the musical?
A: due to Sally Murphy's Julie and the strong supporting cast (calling Audra McDonald the best Carrie he has heard).

IN: Herbert Alexander Simon (June 15, 1916 - February 9, 2001) was an American economist and political scientist whose primary interest was decision-making within organizations and is best known for the theories of "bounded rationality" and "satisficing". He received the Nobel Prize in Economics in 1978 and the Turing Award in 1975. His research was noted for its interdisciplinary nature and spanned across the fields of cognitive science, computer science, public administration, management, and political science. He was at Carnegie Mellon University for most of his career, from 1949 to 2001.

Herbert Alexander Simon was born in Milwaukee, Wisconsin, on June 15, 1916. His father, Arthur Simon (1881-1948), was an electrical engineer who had come to the United States from Germany in 1903 after earning his engineering degree from the Technische Hochschule of Darmstadt. An inventor who was granted "several dozen patents", his father also was an independent patent attorney. His mother, Edna Marguerite Merkel, was an accomplished pianist whose ancestors had come from Prague and Cologne. His European ancestors had been piano makers, goldsmiths, and vintners. Simon's father was Jewish and his mother came from a family with Jewish, Lutheran, and Catholic backgrounds. Simon called himself an atheist. Simon was educated in the Milwaukee public school system, where he developed an interest in science. He found schoolwork to be interesting and easy. Unlike many children, Simon was exposed to the idea that human behavior could be studied scientifically at a relatively young age due to the influence of his mother's younger brother, Harold Merkel, who had studied economics at the University of Wisconsin-Madison under John R. Commons. Through his uncle's books on economics and psychology, Simon discovered the social sciences. Among his earliest influences, Simon has cited Richard Ely's economics textbook, Norman Angell's The Great Illusion, and Henry George's Progress and Poverty. At that time, Simon argued "from conviction, rather than cussedness" in favor of George's controversial "single tax" on land rents. In 1933, Simon entered the University of Chicago, and following those early influences, he studied the social sciences and mathematics. He was interested in biology, but chose not to study it because of his "color-blindness and awkwardness in the laboratory". He chose instead to focus on political science and economics. His most important mentor was Henry Schultz, an econometrician and mathematical economist. Simon received both his B.A. (1936) and his Ph.D. (1943) in political science, from the University of Chicago, where he studied under Harold Lasswell, Nicholas Rashevsky, Rudolf Carnap, Henry Schultz, and Charles Edward Merriam. After enrolling in a course on "Measuring Municipal Governments", Simon was invited to be a research assistant for Clarence Ridley, with whom he coauthored Measuring Municipal Activities in 1938. Eventually his studies led him to the field of organizational decision-making, which would become the subject of his doctoral dissertation.

who was his mother?

OUT:
His mother, Edna Marguerite Merkel, was an accomplished pianist whose ancestors had come from Prague and Cologne.