tweaks to Harmony Mill Building 3, correct end date
improve Enlarged Erie Canal in Cohoes, NY
add image for Harmony Mill Building 4
add image for Harmony Mill Office
add image for Harmony Mill Building 4
tweak start dates, use temp start/end_date_edtf tags
tweak start dates, use temp start/end_date_edtf tags
improve Hzarmony Mills, Erie Canal in Cohoes NY
improve harmony mills site, cohoes ny
pre 1911 Mohawk River moving west from Crescent
add pre 1911 Mohawk River banks from Cresecent Dam to Power company dam
more start dates on modern Mohawk River banks
section of Mohawk River pre barge canal
testing ohm:lifecycle relation type
testing ohm:lifecycle relation type
start modeling pre barge canal mohawk river banks
original power house at Crescent dam
tweak wikimedia commons image, adjust relation and times