 Over the next 2 years, they designed several buildings together which today are in recognized national historic districts.in 1889–90, they planned a Flemish/Romanesque Revival style apartment building at 373–375 Amsterdam Avenue, for Rooke's patron Horton.The two architects designed a row of seven houses built in 1889 at 669–681 10th Street in what is now the Park Slope Historic District in Brooklyn.