Battle flags

Michigan Light Artillery flags. These are the actual flags returned to the Michigan Governor after each Battery was discharged or after 1865. They were displayed on flag poles in the Capital building's rotunda in Lansing, MI for many years. Over time, they deteriorated due to being exposed to too much light and their own weight pulling at the fabrics. In the 1960's, a restoration effort was made to hold the fabric together with netting sewn on both sides of each flag. Unfortunately, this created hundreds of additional tiny needle holes which further destroyed the flags. In the late 1980's, the flags were again put into restoration with updated techniques which were successful. They are now stored in an archival area. Instead, reproductions are displayed in the Capital today.
Flags were bestowed upon regiments often in pairs: national and regimental. Flags with stars & stripes are "national'. Regiments also referred to them as "battle" flags as they helped rally and organize the regiments on the battlefield. After certain battles, they painted the location name and sometimes the date on the white stripe, usually starting with the 4th from the top. Flags with the blue background and eagle are "regimental". Some later regiments created specialized flags like the one shown here for Battery H.
Battery D's flags might be stored/archived at the Capital building. It likely had a design much like Battery "E" as shown here.