此《Father Leo Van Dyke collection》（狄化淳神父的摄影集）由比利时来华天主教传教士狄化淳拍摄。全套共含照片九十幅，拍摄时间在1920年前后，照片内容主要是宁夏、甘肃地区的戏剧服饰、街景集市、城楼建筑、水运交通等。此影集（硝酸纤维素胶片）现藏于：哈佛大学图书馆。
狄化淳（F·Leo Van Dyck）比利时籍天主教神父。早年来华传教，1922年12月调宁夏城，协同康神父工作，1927年，狄化淳神父(LeoVANDiyk)接替康神父。由于土匪横行，狄神父往下营子送弥撒很困难。下营子天主堂是天主教在宁夏开创的第一处堂区。（介绍参考）
大致英文图录
Actors of the Grande Comedie
Actors of the Grande Comedie
Actors of the Grande Comedie
Actors of the Grande Comedie
Actors of the Grande Comedie
Actors of the Grande Comedie
Actors of the Grande Comedie
Actors of the Grande Comedie
Actors of the Grande Comedie
Irrigation wheel
Irrigation wheel
Irrigation wheel
River bank
Festival, the route which leads to it [near the] ya-men compound
Private courtyard
Botanical gardens
Donkey backed bridge, outside city [walls]
Festival
Beggars against the wall
Beggars
Blind beggar
Irrigation wheel
Market
Festival
Lan chow after the rain
Donkey back bridge, outside the [city] walls
Shipment of tobacco
Theater
Festival
Landing place
Festival
Festival
Water carriage
Main street, Lan chow
Landing place
Raft
Skin raft on Yellow River
Boat
Theater, the stage
Wall of a mosque
Wood raft
Boat for island service
Botanical garden pavillion [sic]
Bank of the Yellow River
Actor of the Grande Comedie
Actors of the Grande Comedie
Actors of the Grande Comedie
Irrigation wheel
North bank of Yellow River
Actors of the Grande Comedie
Lan Chow after the rain
Little boy leading a yak
River bank
West Gate, Lan chow
West Gate and town
Blind beggar
Festival
Market
Main street of Lan chow
Festival
City of Lan chow [viewed from] across the river
Itinerant food peddler
Main street of Lan chow
Festival
Lan chow after the rain
Pavillion [sic] of the arsenal
Festival
South bank of river
Lan chow after the rain
Lan chow valley
Raft and irrigation wheel [in the background]
City [of Lanzhou]
River bank
Watermelon market
Actors [of the Grande Comedie]
Arrival of grain, outside [Lanzhou]
Boat on Yellow River
Yellow River
River, looking east
Whistler
Wall of a mosque
Side entrance, ya-men compound
Near the river
River bank [and] water carrier
Fifteen kilometers west of Lan chow
North bank [and] skin raft
Bridge [and] water carriers
Bridge [and] water carriers
City gate
Actor of the Grande Comedie
英文著录信息
Materials/Techniques: cellulose nitrate film
Dimensions: 11 x 9 cm
General: Title from negative enclosure. "Taken by the Rev. F. Leon Van Dyk[e], Catholic Mission, Ninghsia-fu, Kansu, China … previous to 1924."--typewritten on original negative enclosure.
Historical: Belgian Catholic priest Father Leon Van Dyke served as a missionary at the Scheut Fathers mission in Ningxia, Gansu Province, China, in the 1920s.