Moncure Daniel Conway and family at their London home, ca. 1890s, photographer unknown, via House Divided: The Civil War Research Engine at Dickinson College.
Moncure Conway (third from the left) was a southern abolitionist, born in Virginia to a prominent slave-owning family and educated at Dickinson. After college, he first became a circuit-riding Methodist minister, but then a crisis of conscience led him to further study at Harvard and ministry in the Unitarian Church. At the outbreak of the Civil War, he undertook a mission to promote the anti-slavery, pro-Union cause to Great Britain. London became his home for most of the rest of his life as he led the nonconformist South Place Ethical Society.
From the mallets in the picture, members of the family seem to have just finished a croquet game. The maid is bringing out tea.
The garden at Weilmoringle sheep station, Weilmoringle, New South Wales, 1910, by Edward Challis Kempe, via Trove of the National Library of Australia.
Saurbær Church, Saurbæjarkirkja, Iceland, ca. 1900, by Frederick W. W. Howell, Cornell University Library, via Cornell University Library Commons on flickr.
This now rare turf church still exists. You can see it in 2015 here.
The castle garden of St. Fagans National Museum of History, June 1, 1951, by Geoff Charles, via The National Library of Wales/Llyfrgell Genedlaethol Cymru on flickr (cropped slightly by me).
Geoff Charles was a photojournalist for Welsh newspapers such as The Wrexham Star, The Montgomeryshire Express, and Y Cymro.
A camp in an Eden-like spot in the forest of the Upper Yarra Valley, Victoria, 1906, by Archibald James Campbell, via Museums Victoria Collections (under CC license).
Campbell was an ornithologist and a naturalist, and he made early use of nature photography to record his fieldwork.