Louis Sigurd Fridericia
Louis Sigurd Fridericia (February 24, 1881 – February 1947) was a Danish hygienist born in Copenhagen.
Louis Fridericia's family had come to Denmark in the 1750s and took a form the name of the Jutland town (Fredericia) where they settled.
He attended the University of his native city of Copenhagen and graduated medicine in 1906.
He became a physician that year and received further education from Christian Bohr (1855-1911) in Copenhagen, Ernst Leopold Salkowski (1844-1923) in Berlin, Georges Dreyer (1873-1934) and Francis Gotch (1853-1913) at Oxford.
In Copenhagen he was an assistant at the institutes of physiology, bacteriology, and general pathology, and assistant physician at the Rigshospitalet, the Kommunehospitalet as well as Bispebjerg Hospital.
He was habilitated in 1910 and in 1918 was appointed professor of hygiene.
His first works concern the study of metabolism, respiration and circulation, his later works nutritional hygiene and nutritional physiology.
He is most known for his repolarization correction formula of the QT interval QTcF.
Fridericia went into hiding after the Nazi Occupation of Denmark and in 1943 was smuggled to Sweden hidden in a fishing boat.
He then went to London where he remained until the liberation.
His wife, violinist Karen (Monies) Fridericia, died of overwork a few days after their return to Denmark, and her widower never really recovered from the shock.
He died of an inoperable cancer that had affected his liver, spleen and aorta.
Louis Nékám
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Edward Irby
Sir Edward Irby, 1st Baronet (31 July 1676 – 11 November 1718) was an English politician who sat in the House of Commons of England from 1702 until 1708 when following the Act of Union 1707 it had become the House of Commons of Great Britain.
Irby was the eldest son of Anthony Irby and his wife Mary Stringer, daughter of John Stringer.
He was the grandson of Sir Anthony Irby.
In 1702, he was elected Member of Parliament for Boston, representing the constituency until 1708.
On 13 April 1704, he was created a baronet, of Whaplode and Boston, in the County of Lincolnshire.
Irby married Dorothy Paget, only daughter of Hon.
Henry Paget, second son of William Paget, 5th Baron Paget in 1706, and by her he had a son and a daughter.
Irby died intestate at Kings Cliffe, Northamptonshire and was buried at Whaplode, Lincolnshire.
He was succeeded in the baronetcy by his only son William, later raised to the Peerage of Great Britain as Baron Boston.

Question: Who was born later, Edward Irby or Louis Sigurd Fridericia?
Answer: Louis Sigurd Fridericia