Question: Which Austrian and later American chess master who was also a highly influential writer and chess theoretician competed for the first contest  that was defined "in advance" as being for the world championship?

Passages:
Spencer Crakanthorp, (17 February 1885 in Sydney, Australia – 1 August 1936) was a chess player and Australian Chess Champion in 1923−24, 1925−26, 1926 and 1927.  He was the father-in-law of chess master Cecil Purdy who married Anne Purdy (née Crakanthorp, 1915–2013).  Anne was a strong A Grade chess player in her own right.  He was also grandfather to another chess master, Cecil's son John Purdy.  Furthermore, Crakanthrop's granddaughter Diana Hutchings (née Purdy) married Frank Huntchings - winner of the 1953 New Zealand junior chess championship while his father (Lawrence Crakanthorp) (1857-1929) was ranked world no 188 in the 1902 historical world rating list.  Therefore, the Crakanthorp-Purdy family can be recognized as one of the greatest chess dynasties ever. The concept of a world chess champion started to emerge in the first half of the 19th century, and the phrase "world champion" appeared in 1845.  From this time onwards various players were "acclaimed" as world champions, but the first contest that was defined "in advance" as being for the world championship was the match between Steinitz and Zukertort in 1886.  Until 1948 world championship contents were matches arranged privately between the players.  As a result, the players also had to arrange the funding, in the form of stakes provided by enthusiasts who wished to bet on one of the players.  In the early 20th century this was sometimes a barrier that prevent or delayed challenges for the title. The monthly Chess Life and bi-monthly Chess Life Kids (formerly School Mates and Chess Life for Kids ) are the official magazines published by the United States Chess Federation (US Chess).  "Chess Life" is advertised as the "most widely read chess magazine in the world," and reaches more than a quarter of a million readers each month.  It focuses on American chess players and tournaments, instruction, human interest, and US Chess governance matters.  "Chess Life for Kids" is geared towards those under 14.  A subscription to "Chess Life" and "Chess Life for Kids" is currently one benefit of becoming a US Chess member or affiliate.  All members are given access to the online versions of "Chess Life" and "Chess Life for Kids" (including back issues).  Affiliates and some membership categories also receive printed copies of "Chess Life" and/or "Chess Life for Kids". Alexander Kevitz (September 1, 1902 – October 24, 1981) was an American chess master.  Kevitz also played correspondence chess, and was a creative chess analyst and theoretician.  He was a pharmacist by profession. David Graham Baird (3 December 1854 in New York City – 8 October 1913 in Elizabeth, New Jersey) was an American chess master.  He was the brother of John Washington Baird, who was also an American chess master.  A writer in the "New York Times", describing the players in the Sixth American Chess Congress (1889), portrayed Baird and his brother as follows: Paul Charles Morphy (June 22, 1837 – July 10, 1884) was an American chess player.  He is considered to have been the greatest chess master of his era and an unofficial World Chess Champion.  He was a chess prodigy.  He was called "The Pride and Sorrow of Chess" because he had a brilliant chess career but retired from the game while still young.  Bobby Fischer included him in his list of the ten greatest players of all time, and described him as "perhaps the most accurate player who ever lived". Wilhelm (later William) Steinitz (May 17, 1836 – August 12, 1900) was an Austrian and later American chess master, and the first undisputed world chess champion, from 1886 to 1894.  He was also a highly influential writer and chess theoretician. John Washington Baird (February 22, 1852-1923) was a minor American chess master, who played in a number of American and international chess tournaments between 1880 and 1906.  He was the brother of David Graham Baird, who was also an American chess master. James Eade (born March 23, 1957) is an American chess master, chess administrator, chess tournament organizer, and chess book publisher.  He holds the title of FIDE Master.  He is best known for the books "Chess for Dummies" (1996) and "The Chess Player's Bible" (2004), both of which have been through several editions and been translated into 8 languages. Daniel Rensch is an International chess master, event organizer, lecturer, commentator, and chess personality from the United States.  He was a child prodigy; he holds the Arizona State record for youngest national master at 14 years old.  National Master is a title awarded by the US Chess Federation when a player's rating passes 2200 on the USCF rating scale.  He won the 1998 Elementary National Championship, the 2000 Junior High National Championship, tied for the 2004 National High School Championship, and was the highest rated 19-year-old in the US, 2004.  He is the President of American Chess Events LLC, and Vice-President of chess.com.

Supporting sentences:
 From this time onwards various players were "acclaimed" as world champions, but the first contest that was defined "in advance" as being for the world championship was the match between Steinitz and Zukertort in 1886. Wilhelm (later William) Steinitz (May 17, 1836 – August 12, 1900) was an Austrian and later American chess master, and the first undisputed world chess champion, from 1886 to 1894.  He was also a highly influential writer and chess theoretician.