Munro,

HCR diary 3.6.1818 at British Gallery with Mrs Smith, the futre Mrs Aders "Mrs S made me attentive to the brilliant lights of Hobbema and made me half a convert to her preference of Cuyp over Claude"
A longish passage on how the future Mrs Aders influenced Robinson's taste in art, but compare his visit the previous month to the gallery with Munro, who seems to have influenced him in much the same direction. Probably Hugh Andrew Johnstone Munro (DNB 1797-1864)