Preface, derived from the 1993 print edition of The New Langwill Index by William Waterhouse, gives a historical background leading up to its publication.

Langwill and his Index is a tribute by William Waterhouse to Lyndesay Langwill, published in the 1993 print edition of The New Langwill Index.

Methods and Principles describes the types of information presented in WIM-Online, and the scope and editorial policies for each field. 

Makers' marks on wind instruments by Herbert Heyde was published in the 1993 edition of The New Langwill Index, and revised by the original author in 2024 for Wind Instrument Makers Online.