(Photo caption: Philip Blair and Mary Pat Rowan on their first trip to the Soldiers' Home.

Philip Blair and Mary Pat Rowan on their first trip to the Soldiers’ Home (à la Bogart & Hepburn) .

Mary Pat Rowan will lead a 60-minute nature walk at 2 p.m. at the Spring Fling on Saturday, May 4. The walk will begin and end at the gazebo next to the pond at the Armed Forces Retirement Home. (See more details about Spring Fling below.)

Rowan is a practicing landscape architect. She is Chair of the Washington Chapter of the Maryland Native Plant Society (www.mdflora.org), and conducts monthly tours of the native habitats at the Civil War fort sites in the District (including Fort Totten, just up the hill from the Soldiers Home.) She is the current president of the Greater Brookland Garden Club: Come for the Brookland House and Garden Tour on Sunday, June 2 (www.gbgc.org).  She is also a member of the Committee of 100 on the Federal City, which defends the L’Enfant and McMillan plans for the city. She relaxes by telling her husband what to do. She has told him to help out on the Spring Fling tour. He is an anthropologist and knows something about the geology and hydrology of the area and its ancient history. (His name is Philip Blair.)