Question: Who was the barman that named a drink after the first person to walk on the moon?

Context paragraphs:
Detour (Brodsky novel): Detour is Michael Brodsky's first novel.  It is the first person partly autobiographical account of an often bored film devotee going to Cleveland for medical school, making observations on everything in his daily life, either in a philosophical manner, or by comparing any given incident with some classic film scene, or both.  Halfway through, the narration is interrupted by Steve's story, also told in first person.  The novel eventually resumes with the original first person narrator, who finally decides medical school is not for him.

Whakahuihui Vercoe: Whakahuihui "Hui" Vercoe {'1': ", '2': ", '3': ", '4': "} (4 June 1928 – 13 September 2007) was an Anglican bishop in New Zealand.  He was the Archbishop of New Zealand from 2004 to 2006, the first person from the Maori church to hold that office.  He was also Bishop of Aotearoa from 1981, the first person to be elected to that position by the congregation rather than being appointed by the church hierarchy.  He held both offices until his retirement in 2006.  He was also the first person to become a Principal Companion of the New Zealand Order of Merit after the rank was introduced in 2000.

Djinn (novel): Djinn is a novel by French writer Alain Robbe-Grillet.  It was written as a French textbook with California State University, Dominguez Hills professor Yvone Lenard using a process of grammatical progression.  Each chapter covers a specific element of French grammar which becomes increasingly difficult over the course of the novel.  The first five chapters are written in the present tense from the first person point of view.  The sixth chapter is written partially in the third person past and partially in the first person present.  The eighth chapter is written in the first person point of view, but the narrator has changed from the masculine Simon Lecoeur to an unknown female narrator.

Neil Armstrong: Neil Alden Armstrong (August 5, 1930 – August 25, 2012) was an American astronaut, engineer, and the first person to walk on the Moon.  He was also an aerospace engineer, naval aviator, test pilot, and university professor.  Before becoming an astronaut, Armstrong was an officer in the U.S. Navy and served in the Korean War.  After the war, he earned his bachelor's degree at Purdue University and served as a test pilot at the National Advisory Committee for Aeronautics (NACA) High-Speed Flight Station, where he logged over 900 flights.  He later completed graduate studies at the University of Southern California.

RV Neil Armstrong (AGOR-27): RV "Neil Armstrong" (AGOR-27) is the designation for a new oceanographic research ship, first of the "Neil Armstrong"-class research vessel s, to be owned by the United States Navy and operated by Woods Hole Oceanographic Institution.  Secretary of the Navy Ray Mabus announced on September 24, 2012 that the research vessel was to be named after Neil Armstrong, the first person to walk on the Moon and a former naval aviator who served in the Korean War.

Joe Gilmore: Joe Gilmore (19 May 1922 – 18 December 2015) was one of the longest running Head Barmen at The Savoy Hotel's American Bar.  He was born in Belfast and moved to London in 1938.  Gilmore started as a trainee barman at The American Bar in 1940 and was appointed Head Barman in 1955, a position he held until he retired in 1976.  Over his years as Head Barman, Gilmore invented numerous cocktails to mark special events and important guests, a longstanding tradition at the American Bar.  Gilmore has invented cocktails in honor of a number of royalty, politicians and celebrities including The Prince of Wales, Prince William, The Princess Anne, Queen Elizabeth The Queen Mother, The Prince Andrew, Sir Winston Churchill, and American Presidents Harry S. Truman and Richard Nixon.  He also invented cocktails to commemorate the first walk on the moon in 1969 by Neil Armstrong, and the American and Russian link-up in space in 1975.

Grammatical person: Grammatical person, in linguistics, is the grammatical distinction between deictic references to participant(s) in an event; typically the distinction is between the speaker (first person), the addressee (second person), and others (third person).  Put in simple colloquial English, first person is that which includes the speaker, namely, "I," "we," "me," and "us," second person is the person or people to whom are spoken, literally, "you," and third person includes all that is not listed above.  Grammatical person typically defines a language's set of personal pronouns.  It also frequently affects verbs, and sometimes nouns or possessive relationships.

First-person narrative: A first-person narrative is a mode of storytelling in which a narrator relays events from his or her own point of view using the first person It may be narrated by a first person protagonist (or other focal character), first person re-teller, first person witness, or first person peripheral (also called a peripheral narrator).  A classic example of a first person protagonist narrator is Charlotte Brontë's "Jane Eyre" (1847), in which the title character is also the narrator telling her own story, "I could not unlove him now, merely because I found that he had ceased to notice me".

Maza of the Moon: Ted Dustin, an American inventor, seeks to win a prize of one million dollars by being the first person to touch the moon with an object launched from Earth.  He devises a huge gun, which fires upon the surface of the moon.  Shortly thereafter, the moon fires back, and war breaks out between the planet and its satellite.  Using a videophone he invented, Ted hails communication with the moon.  A beautiful woman and her guards first reply, but their transmission is cut off by warlike yellow aliens.  Ted eventually heads to the moon in a spacecraft of his own design, and meets the titular character, who turns out to be the beautiful woman from the transmission, as well as a princess of one of the two groups that inhabit the moon.

Bartender: A bartender (also known as a barkeep, barman, barmaid, bar chef, tapster, mixologist, alcohol server, flairman or a alcohol chef) is a person who formulates and serves alcoholic or soft drink beverages behind the bar, usually in a licensed establishment.  Bartenders also usually maintain the supplies and inventory for the bar.  A bartender can generally mix classic cocktails such as a Cosmopolitan, Manhattan, Old Fashioned, and Mojito.  The bartending profession was generally a second occupation, used as transitional work for students to gain customer experience or to save money for university fees.  This however is changing around the world and bartending has become a profession by choice rather than necessity.  Cocktail competitions such as World Class and Bacardi Legacy have recognised talented bartenders in the past decade and these bartenders, and others, spread the love of cocktails and hospitality throughout the world.

Supporting paragraphs: Joe Gilmore Neil Armstrong
Answer: invented cocktails