Each major city's library probably will provide digital searchable copies of the city's newspapers over the past 100 years! Why use old newspapers in your websearch? If you are looking for cases that have to do with a current case that might have relevancy, search in these newspaper collections for words like 'litigation" and "child support" and look over the cases that are referred to in the news;paper in that city, then go to other web resources or Lexis or Westlaw to dig deeper into a particular case.
St. Louis newspaper archive:
https://www.slpl.org/resources-types/newspapers-magazines/