Editing Nottingham Forest F.C. (section)

===First half of 20th century===
Forest lost FA Cup semi-finals in 1900 and 1902. They finished fourth in the [[1900–01 Football League]] followed with fifth place the season after. The club then started to slide down the table. Forest were relegated for the first time in 1905–06. [[Grenville Morris]] had his first of five seasons as the club's highest scorer en route to becoming the all-time club highest goalscorer with 213 goals.

Promotion as champions was immediate in 1906–07. The club was relegated a second time to the Second Division in 1911, and had to seek re-election in 1914 after finishing bottom of that tier; as the [[First World War]] approached it was in serious financial trouble. The outbreak of the War, along with the benevolence of the committee members, prevented the club going under.<ref name=nffchist/>

In 1919, the [[Football League First Division]] was to be expanded from twenty clubs to twenty-two in time for the [[1919–20 Football League]]: Forest was one of eight clubs to campaign for entry, but received only three votes. Arsenal and [[Chelsea F.C.|Chelsea]] gained the two additional top tier slots.<ref>{{cite news|title=The Joy of Six: Classic Arsenal v Tottenham matches|first1=Rob|last1=Smyth|first2=Simon|last2=Burnton|date=30 October 2009|access-date=5 March 2016|work=The Guardian|url=https://www.theguardian.com/sport/blog/2009/oct/30/joy-of-six-arsenal-tottenham|archive-date=6 March 2016|archive-url=https://web.archive.org/web/20160306204747/http://www.theguardian.com/sport/blog/2009/oct/30/joy-of-six-arsenal-tottenham|url-status=live}}</ref>

In a turnaround from the first six seasons struggling back in the Second Division, Forest were promoted as champions in 1921–22. They survived each of the first two seasons back in the top flight by one position. In the third season after promotion they were relegated as the division's bottom club in 1924–25. They remained in the second tier until relegation in [[1948–49 in English football|1949]] to the [[Football League Third Division]].