[1] After only a few years of operation, the Western clubs became embroiled in the Intermediate dispute relating to compensation payments due to clubs joining Scottish Football League teams, and along with the larger and more powerful Glasgow Junior Football League, broke away from the SJFA and its flagship tournament, the Scottish Junior Cup in 1927 to form a rival Intermediate Association, although still playing in a separate division from the Glasgow clubs.
In 1968 the Junior football system across Scotland was reorganised, with Lanarkshire's league merging with the Central setup.
From 1946 to 1976 the league was divided into North and South sections with the winners in a playoff to decide the overall champion, and thereafter two merit divisions were formed with a dozen clubs in each and promotion/relegation between them.
It was at this point that Auchinleck Talbot, Scottish Cup winners in the 1940s but never a consistent force and without a major trophy in several years, rose to dominate the Junior grade at both regional and national levels, which generally continued into the 21st century.
[4] The divisional setup remained until 2002, when the largest clubs in Ayrshire and Central merged under a two-tier Super League within a new Scottish Junior Football Association, West Region to increase the number of lucrative matches to be played between them (the three regions in the east of the country did likewise).