1817-1862 1954- 19thcentury american authors biography civildisobedience concordregion concordregion(town) davidr descriptionandtravel ecosystems government guidebooks habitats henrydavid hiking history homes homesandhaunts intellectuallife journeysfoster journeysmulloney lakes landscapechanges local ma mannersandcustoms massachusetts me middlesexcounty nat018000his036100spo018000 naturalhistory nature newengland newengland(ct nh philosophythoreau ponds ps3048ebook recreation resistanceto ri sociallifeandcustoms solitude sports state stephen streamecology swamps thoreau travelmulloney unitedstates vt) waldenwoods walking wildernessareas