Maria Thins
Maria Thins( c. 1593 – 27 December 1680) was the mother- in- law of Johannes Vermeer and a member of the Gouda Thins family.
Robert Yerburgh
Robert Armstrong Yerburgh, (17 January 1853 – 18 December 1916), was a British Conservative Party politician.
Robert was the son of Reverend Richard Yerburgh and Susan Higgin, and was educated at Rossall School, Harrow School and then University College, Oxford.
He was elected to the House of Commons for Chester in 1886, a seat he held until 1906 and again from 1910 to 1916.
Yerburgh was also a Deputy Lieutenant of Lancashire and a Justice of the Peace for Kirkcudbrightshire.
He was intended for a peerage in 1916 but died in December of the same year, before the patent had been completed, aged 63.
Yerburgh married Elma Amy, daughter of Daniel Thwaites, in 1888 and the couple lived at Billinge Scar, near Blackburn before moving to Woodfold Hall.
They had two sons.
Their eldest son Robert, also became a Conservative politician and was elevated to the peerage as Baron Alvingham in 1929.
Elma Amy Yerburgh died in 1946.
Donna Harun
Donna Harun( born February 21, 1968) is an Indonesian actress and model of Dutch- Indonesian descent.
She is the mother of actor Ricky Harun and mother- in- law of the actress and model Herfiza Novianti.
Baroness Gösta von dem Bussche-Haddenhausen
Baroness Gösta von dem Bussche- Haddenhausen( 26 January 1902 – 13 June 1996) was the mother of Prince Claus of the Netherlands, who was the Prince Consort of Queen Beatrix of the Netherlands, thus making her the mother- in- law of the former Dutch Queen.
She is also the paternal grandmother of King Willem- Alexander of the Netherlands, who is the current Dutch King.
Elma Yerburgh
Elma Amy Yerburgh (née Thwaites, 30 July 1864 – 6 December 1946) was a member of the Thwaites family who was owner and then chairman of the Thwaites Brewery company (of Blackburn, England) from 1888 to 1946.
She was the daughter of Daniel Thwaites, M.P. for Blackburn, and was married to Robert Yerburgh, M.P. for Chester.
In the town of Blackburn she was known for her generosity to the company's workers and as a public benefactor, who helped fund the construction of the War Memorial wing to Blackburn Royal Infirmary and helped found the town's Empire Theatre, now named after her.
Her name was also commemorated in "Elma's Pound", a beer specially brewed by Thwaites Brewery for Christmas 2007 to celebrate their 200th anniversary.
Eldon Howard
Eldon Howard was a British screenwriter.
She was the mother- in- law of Edward J. Danziger and wrote a number of the screenplays for films by his company Danziger Productions.
Priscilla Pointer
Priscilla Marie Pointer( born May 18, 1924) is an American stage, film and television character actress.
She began her career in the theater, including productions on Broadway.
Later, Pointer moved to Hollywood to act in films and on television.
She is the mother of Amy Irving, therefore making her the former mother- in- law of filmmakers Steven Spielberg and Bruno Barreto and the mother- in- law of documentary filmmaker Kenneth Bowser, Jr.
Vera Miletić
Vera Miletić (Serbian Cyrillic: Вера Милетић; 8 March 1920 – 7 September 1944) was a Serbian student and soldier.
She was notable for being the mother of Mira Marković, posthumously making her the mother-in-law of Serbian president Slobodan Milošević.
Doria Ragland
Doria L. Ragland( born September 2, 1956) is the mother of Meghan, Duchess of Sussex, the mother- in- law of Prince Harry, and the maternal grandmother of Archie Mountbatten- Windsor, who is seventh in line to the British throne.
She is a former makeup artist, business owner, yoga instructor, and former social worker who worked in the mental health sector from 2015 to 2018.
Marian Shields Robinson
Marian Lois Robinson( née Shields; born July 29, 1937) is the mother of Michelle Obama, former First Lady of the United States, and Craig Robinson, a basketball executive, and the mother- in- law of former U.S. President Barack Obama.

Question: Who is the mother-in-law of Elma Yerburgh?
Answer: Susan Higgin