There is a commemorative plaque to Masson in the Cruickshank Botanic Garden, Old Aberdeen.

Entity and relation annotations:
id: 0
type: entity
value: text: Masson
labels: <Person>
id: 1
type: entity
value: text: the Cruickshank Botanic Garden
labels: <Location>
id: 2
type: entity
value: text: Old Aberdeen
labels: <Location>