Dr Walker, a medical practitioner, observed and treated a variety of people for an array of illinesses, ranging from dental problems to venerial disease during his travels and professional life, some of which is documented in his diaries. He and Mrs Walker also observed and described some Australian Aboriginal ceremonial activity and associated materials.

A loose leaf diary detailing WD Walker's daily life including study, medical duties, travel and personal routine. This item covers locations around Adelaide and Yongala South Australia.

References to photographs taken include:

• 12 panoramas of Parkside Mental Hospital 11 September 1926
  
  
• 30 photos Bob Bailey's sheep shearing, sheds, house etc, and 3 rams, Bob, Purple (cat) and Smoker (pup), greyhound in the slips, at Yongala 21 September 1926
  
  

Individuals, subject matter and locations noted include:

• Peter O'Neil 11 September 1926
  
  
• Auntie Lizzie, Mr .Burton, Mrs Alexander 12 September 1926
  
  
• .Clarke, Jimmy McNaughton, Dr Barry 13 September 1926
  
  
• Dr Robinson, Dr Barry 14 September 1926
  
  
• Mr Bunn, Lyall Rutter, Jean Paterson, Mollie, 17 September 1926
  
  
• Andy and Nell, Alb Torr, news clipping "Mental Hospital applications for resident medical officer" and list of Parkside Mental Hospital patients, Bob Bailey 19 September 1926. This item is restricted.
  
  
• Aunty Lizzie, Mollie, Nell, Dr Haste, Carl Schafer, Dr Goode 20 September 1926
  
  
• Mollie, Dr Robinson 22 September 1926
  
  
• Dr Gunson, Dr Mayo, Dr Le Mesauir 23 September 1926
  
  
• Dr Scott, Mollie, 25 September 1926
  
  
• Ruth Miller, Gilbert Brown 28 September 1926
  
  
• Dr Marian, Harrington, Basil Martin, Dr Lynch 30 September 1926
  
  
• Dr Gunson 1 October 1926
  
  
• Dr Krakowski, Dr Ray Hone, Sister Rosman, Dr Gilbert, Dr Brennan 8 October 1926
  
  
• Dr Marian, Dr Robinson, Sr Young, Dr Gunson 14 October 1926
  
  
• Mollie, 20 October 1926
  
  
• Dr Gilbert, Sister Rosman 29 October 1926
  
  
• Mollie, Mrs Streich, Lilly James, Mrs Alexander, Kath and Syd, Win, Laurie Wilson, Nurse Wasson 31 October 1926