Title: Elma Yerburgh
Content:  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.
Title: Elma Yerburgh
Content:  On the death of her father, Elma and her new husband inherited the family brewery business. Her father's will had made provision for the brewery to be sold, with the proceeds, together with the family estates, to be held in trust for Elma. Despite this, Elma decided to retain the brewery and continue the family business under the management of William Ward, who was executor of her father's will and Elma's cousin, being the son of Daniel's eldest sister, Betsey. During the early years after her marriage, Mrs. Yerburgh left the management of the brewery to William Ward, while she 
Title: Robert Yerburgh
Content:  In 1888 Yerburgh married Elma Amy, a daughter of Daniel Thwaites, 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.
Title: Elma Yerburgh
Content:  For the duration of the Second World War, Mrs. Yerburgh spent most of her time at her Scottish home, "Barwhillanty". Now in her eighties and suffering from lack of mobility, she left the day-to-day management of the brewery in the hands of her co-directors. In order to provide for the succession of the family business, she decided to leave her properties to her son Robert (Baron Alvingham), with her shares in the company being passed to her grandsons, John and Oscar (the children of Guy). Mrs. Yerburgh fell seriously ill in November 1946 and died at Barwhillanty on 6 December, aged 82; she was buried at Parton kirkyard. Her gravestone bears the inscription: "In loving memory of Elma Amy Yerburgh, born 30th July 1864, died 6th December 1946. 'And the spirit shall return unto God who gave it'." In her will, she made legacies to several charities, continuing the benevolence she had demonstrated all her life. Following her death, she was dubbed Blackburn's "Lady Bountiful".
Title: Yerburgh
Content: Elma Yerburgh (1864–1946), British business woman and philanthropist, wife of Robert Armstrong Yerburgh ; Hugh Wardell-Yerburgh (1938–1970), British rower ; Janet Bewley-Cathie-Wardell-Yerburgh (born 1940), British fencer ; Oswald Wardell-Yerburgh (1858–1913), originally Oswald Yerburgh, an English clergyman ; Robert Armstrong Yerburgh (1853–1916), British barrister and politician, brother of Oswald Wardell-Yerburgh ; Robert Yerburgh, 1st Baron Alvingham (1889–1955), British politician, son of Robert Armstrong Yerburgh Yerburgh is a surname. Notable people with the surname include: 
Title: Elma Yerburgh
Content:  of the same year. Daniel Thwaites had taken control of the family brewery business in 1858 following the death of his father and the retirement of his brothers. In London on 8 August 1888 she married Robert Yerburgh (1853–1916), who had been elected as Member of Parliament for Chester in the 1886 general election. The couple had first met earlier that year at Winfield House, the home of Sir Harry Hornby, M.P. for Blackburn. The wedding had been postponed for several weeks because of the ill health of her father. Shortly after the marriage, the couple joined her parents at the family estate at Barwhillanty, near Parton, Kirkcudbrightshire, where her father died on 21 September 1888. There were two sons of the marriage: 
Title: Elma Yerburgh
Content:  Mrs. Yerburgh owned several properties across the United Kingdom; at her death these were Woodfold Park near Blackburn, Caythorpe Court in Lincolnshire, and Barwhillanty, in Scotland. During her lifetime, she also had homes in London on Addison Road, Princess Gate and Kensington Gore; at Freeby in Leicestershire and at Bryn Eithin and Cae Eithin in Colwyn Bay in North Wales. Yerburgh Avenue in Colwyn Bay is named after her.
Title: Elma Yerburgh
Content: Robert Daniel Thwaites Yerburgh (10 December 1889 – 27 November 1955), who became M.P. for South Dorset and was created the first Baron Alvingham, of Woodfold in the County Palatine of Lancaster on 10 July 1929. ; Richard "Guy" Cecil Yerburgh (5 November 1892 – 13 March 1926), who became a Major in the Irish Guards and was decorated with the Croix de Guerre and the Croce di Guerra and was invested as an Officer of the Order of the British Empire (O.B.E.). She was born at Addison Lodge in Addison Road, near Holland Park, London, the daughter of Daniel Thwaites (1817–1888) and his wife, Eliza Amelia (née Gregory) (1824–1907). An older brother, Edward, was born on 20 March 1861, but died in the 
Title: Elma Yerburgh
Content:  Yerburgh was known for her "careful attention to detail", her "conscientiousness in fulfilling her duties" and her "decisiveness in business matters". She was "an honourable, upright, just and unselfish woman (who) remained singularly modest and retiring all her life". She sometimes appeared "brusque and too forthright" but this disguised an inherent reticent, shy nature. Despite being a generous benefactor and employer, she avoided courting publicity.
Title: Elma Yerburgh
Content:  Elma and her husband originally lived at Billinge Scar, to the west of Blackburn (at 53.7575°N, -2.51861°W), which had been acquired by her father in 1876. It had twelve bedrooms and a schoolroom where Elma was educated and was decorated with an ornate "Elizabethan façade complete with battlements". The property was later purchased by industrialist, William Birtwistle, but was demolished in the 1940s, with only the coach-house remaining.

Question: Who is the father of Elma Yerburgh?
Answer: Daniel Thwaites.