Some context: Horslips are an Irish Celtic rock band that compose, arrange and perform songs frequently inspired by traditional Irish airs, jigs and reels. The group are regarded as 'founding fathers of Celtic rock' for their fusion of traditional Irish music with rock music and went on to inspire many local and international acts. They formed in 1970 and 'retired' in 1980 for an extended period. The name originated from a spoonerism on The Four Horsemen of the Apocalypse which became "The Four Poxmen of The Horslypse".
Johnny Fean continued to play live music with Stephen Travers, formerly of The Miami Showband.  After his retirement, Eamon Carr went on to become a producer of young rock talent in the mid-1980s, and also forming his own record label called Hotwire (which sponsored noted acts such as the punk rock group The Golden Horde). He also did a number of specialist DJ slots on radio before morphing into a music/sports journalist with the Evening Herald in Dublin. More recently he presented on a Dublin station 'Carr's Cocktail Shack' in which he played American music of the 1950s and 1960s. In 2008, Carr and Henry McCullough co-wrote a new bunch of songs. A resulting album entitled Poor Man's Moon was released on 1 September 2008. Also in 2008, Carr released his first book, The Origami Crow, Journey Into Japan, World Cup Summer 2002, a book that is at once a travel log about his journey to Japan, a poetry collection, an homage to Japanese poet Basho, heralded by many as the creator of Haiku, and also has some sports commentary thrown in.  Barry Devlin directed for the screen and been a drama writer for radio and screen, as can be seen from his credits on the IMDB and for the radio detective drama Baldi He produced a number of U2 videos in the mid-1980s. Examples of his screen writing are evident in the joint RTE/BBC production Ballykissangel and ITV's The Darling Buds of May.  Jim Lockhart is head of production at RTE 2fm and has also done some production work and music arrangement.  Charles O'Connor owns two antique shops in Whitby, England. O'Connor continued to record folk and traditional music in his home recording studio.
How many members did they have before the other activities?
A: 

Some context: Gordon Banks  (born 30 December 1937) is a former England international football goalkeeper. He made 628 appearances during a 15-year career in the Football League, and won 73 caps for his country. Regarded as one of the greatest goalkeepers of all time, the IFFHS named Banks the second-best goalkeeper of the 20th century - after Lev Yashin (1st) and ahead of Dino Zoff (3rd). He was named FWA Footballer of the Year in 1972, and was named FIFA Goalkeeper of the Year on six occasions.
Banks was born in Sheffield, West Riding of Yorkshire, and brought up in the working-class area of Tinsley. The family later moved to the village of Catcliffe after his father set up a (then-illegal) betting shop. This brought greater prosperity but also misery; one day Banks's disabled brother was mugged for the shop's daily takings, and died of his injuries some weeks later. Banks left school in December 1952 and took up employment as a bagger with a local coal merchant, which helped to build up his upper body strength. He spent a season playing for amateur side Millspaugh F.C. after their regular goalkeeper failed to turn up for a match; the club's trainer spotted Banks amongst the spectators and invited him to play in goal as he was aware that Banks had previously played for Sheffield Schoolboys. His performances there earned him a game in the Yorkshire League for Rawmarsh Welfare, however a 12-2 defeat to Stocksbridge Works on his debut was followed by a 3-1 home defeat, and he was dropped by Rawmarsh and returned to Millspaugh. Still aged 15, he then switched jobs to become a hod carrier.  He was scouted by Chesterfield whilst playing for Millspaugh, and offered a six-game trial in the youth team in March 1953. He impressed enough in these games to be offered a part-time PS3-a-week contract by manager Teddy Davison in July 1953. The reserve team were placed in the Central League on account of a powerful club director rather than on merit, and Banks conceded 122 goals in the 1954-55 season as the "Spireites" finished in last place with only three victories. Banks was posted to Germany with the Royal Signals on national service, and won the Rhine Cup with his regimental team. He recovered from a fractured elbow to help the Chesterfield youth team to the 1956 final of the FA Youth Cup. There they were beaten 4-3 on aggregate by Manchester United's famous "Busby Babes" - a team that included both Wilf McGuinness and Bobby Charlton.  Banks was given his first team debut by manager Doug Livingstone, at the expense of long-serving Ron Powell, in a Third Division game against Colchester United at Saltergate in November 1958. The game ended 2-2, and Banks kept his place against Norwich City in the following match; by the end of the 1958-59 season he had missed only three games, those owing to injury. With no goalkeeping coaching to speak of, Banks had to learn from his mistakes on the pitch, and he soon developed into a modern vocal goalkeeper who ordered the players in front of him into a more effective defence. Having just 23 league and three cup appearances to his name, it came as a surprise to Banks when Matt Gillies, manager of First Division club Leicester City, bought him from Chesterfield for PS7,000 in July 1959; this also meant a wage increase to PS15 a week.
How did he do in the six-game trial?
A:
He impressed enough in these games to be offered a part-time PS3-a-week contract