Andrew Dalzell
Prof Andrew Dalzell( sometimes shown as Andrew Dalzel or Andrew Dalziel) FRSE( 1742– 1806) was a Scottish scholar and prominent figure during the Scottish Enlightenment.
In 1783 he was a co-founder of the Royal Society of Edinburgh.
Andreas (archbishop of Bari)
Andreas( or Andrew) was the Archbishop of Bari from 1062 to at least 1066, and probably somewhat longer.
In 1066, he travelled to Constantinople where at some point he converted to Judaism.
He then fled to the Muslim- dominated Egypt and remained there until his death in 1078.
Gustav Guanella
Gustav Guanella( June 21, 1909 – January 12, 1982) was a Swiss inventor who held numerous patents.
Andrew Brook
Andrew Brook( born March 17, 1943) is a Canadian philosopher, author and academic particularly known for his writings on Immanuel Kant and the interplay between philosophy and cognitive science.
Brook is Chancellor's Professor of Philosophy and Cognitive Science at Carleton University, President of the Canadian Psychoanalytic Society, and former President of the Canadian Philosophical Association.
Andrew Stratelates
Andrew Stratelates, also known as Andrew the Tribune( Greek: Ἀνδρέας ὁ Στρατηλάτης, tr. Andréas o Stratelátes) or Andrew the Commander is a 3rd- century Roman soldier who is commemorated with his 2,593 soldiers as martyrs by the Roman Catholic Church and the Eastern Orthodox Church on 19 August.
Jovan Markovski
Jovan Markovski( born March 28, 1988) is a Macedonian professional basketball small forward who last played for Vardar.
He is older brother of Gorjan Markovski who is also basketball player and plays for Feni Industries
Filip Arsenijević
Filip Arsenijević( born 2 September 1983) is a Serbian footballer who plays for TSC Bačka Topola.
He is older brother of Nemanja Arsenijević.
Andro Hart
Andro Hart( died December 1621), or Andrew Hart, was a Scottish printer, publisher, and bookseller in Edinburgh.
Andrew Stewart, 2nd Lord Avondale
Andrew Stewart, 2nd Lord Avondale or Andrew Stuart, 1st Lord Ochiltree,( died 1549), Scottish peer.
Andy Jackson (recording engineer)
Andrew Brook" Andy" Jackson is a British recording engineer best known for his work with the British progressive rock band Pink Floyd.
He is also the owner and operator of Tube Mastering, a private studio specializing in recorded music mastering.

Question: Who is older, Gustav Guanella or Andrew Brook?
Answer: Gustav Guanella