Swan

Google map

Here is one version of a map that includes Swan. If you want a choice of other tools to map out the location, use the Wikipedia link below and click on the lat/long coordinates there just above the map of the town within Marion county adjacent to the county map of Iowa that shows where Marion county is within Iowa.

Wikipedia

Wikipedia gives some basic information about the town.

Swan

This link is from the Communities page on the Marion County Development website

Located in Sections 17, 18 & 20 in Pleasant Grove North Township.

From Farm & Home Plat & Directory of Marion County, Iowa by FHP Farm & Home Publishers LTD, Belmond, Iowa.