| March 1, 1943 to November 2, 1945 |
| Date |
Event |
| March 1, 1943 |
300th Combat Engineer Battalion activated at Camp White, Oregon Assigned to IX Corps |
| March 15 |
Battalion (future reference BN) assigned to IV Corps |
| November 5 |
BN assigned to Fourth Army |
| November 7 |
Advanced Detachment of Battalion departed Camp White |
| November 19 |
BN (less Advanced Detachment) arrived Camp Shanks, New York |
| November 23 |
Advanced Detachment departed New York on the Queen Elizabeth |
| December 3 |
BN (less Advanced Detachment) left New York on the Queen Mary |
| December 9 |
BN arrived in Europe landing at Gourock, Scotland |
| December 12 |
BN moved to Devises, England by train |
| January-June 1944 |
BN trained in England preparing for invasion training site in tent camp ("Tent City") near Swindon in Chisledon, Wilkshire, England |
| February 13 |
BN to Maple Durham, Oxfordshire for floating bridge training |
| February 26 |
BN to Chisledon, Wiltshire |
| March 9 |
Co. C to Maple Durham, Oxfordshire |
| March 12 |
Co. A, Co B, and Med. Detach. to Maple Durham, Oxfordshire |
| March 23 |
Co, A, Co. B and Med. Detach. to Chisledon, Wiltshire |
| April 10 |
BN to Cane End, Berkshire for bridge training |
| April 14 |
Co. A, 2nd and 3rd platoons with Company HQ to Chisledon, Wiltshire |
| April 16 |
Co. A, 2nd and 3rd platoons with Company HQ to Maple Durham, Oxfordshire |
| April 17 |
BN to Chisledon, Wiltshire |
| April 20 |
BN alerted for Departure |
| April 20 |
Co. C to Cane End, Berkshire |
| April 22 |
Co. C to Chisledon, Wiltshire |
| June 4 |
BN prepared to board LST for departure for the invasion |
| June 5 |
BN returned to camp, replaced for the invasion by the 299th Engineers |
| June 6, 1944 |
Invasion of Europe by Allied forces landing on Normandy Beaches
300th under the command of Major John Tucker attached to 1110th and First Army |
| June 16 |
LST 87 with First Echelon of 300th landed on Utah Beach, Normandy |
| June 18-20 |
First Echelon removed hasty mines and laid deliberate mine field in front of 101st Airborne in the area of Carentan |
| June 19 |
LST 523 with Second Echelon of 300th hit German mine and went down off Utah Beach killing 90+ men and wounding many
First Echelon bivouacked 8 miles north of Carentan |
| June 27 |
LCT 59 with Third Echelon of 300th landed on Utah Beach, Normandy (one Army record shows LCT 435)
Third Echelon joined First Echelon 8 miles north of Carentan |
| June 30 |
BN doing bridge work at Carentan under fire, CO Major Tucker killed
Col. Daniel Spengler named Temp. CO, BN near Picauville, France |
| July 3 |
Co. C to La Besneville, Co. A to St. Sauveur Le Vicomte |
| July 4 |
BN to St. Sauveur Le Vicomte less Co. C
Co. C to LaRouge De Vas |
| July 5 |
Co. A to Marcanville |
| July 6 |
Co. C to Marcanville |
| July 8 |
Col. Spengler killed at La Haye-du-Puits by sniper fire |
| July 9 |
BN attached to 1105th Engineer Combat Group
Co. A and Co. C moved to St. Sauveur |
| July 10 |
BN to Osmansville near Isigny |
| July (mid) |
Major Riel Crandall assigned command of 300th |
| August 1 |
BN to Moon Sur-Elle near St. Lo |
| August 7 |
BN to Le Jardin |
| August 15 |
BN to Sept Freres |
| August 21 |
BN to La Pas-St. Lhomer |
| August 25 |
BN through Paris |
| August 31 |
BN to Houville |
| September 2 |
BN to near Crecy |
| September 5 |
BN to La Capelle |
| September 14 |
Co. B to Modave, Belgium |
| September 15 |
BN to Modave, Belgium less Co. B and Co. C |
| September 16 |
Co. C to Modave, Belgium |
| October 15-19 |
Side trips to north of Eysden, Holland
Co. A, Co. B, and Co. C one day each of Bailey Bridge training |
| October 21 |
First and Ninth Armies consolidated |
| October 31 |
H & S Co. and Med. Detach. moved into Grand Chateau de Modave |
| December 19 |
BN attached to 1111th Engineer Combat Group |
| December 25 |
BN attached to 4th Cavalry |
| December 26 |
BN attached to 1111th Engineer Combat Group |
| January 3, 1945 |
Moved from Modave to various locations in Belgium
BN HQ and H & S Co. & Medical Detachment (future reference BN HQ) to Filot, Co. B, Co. C to Hamoir |
| January 7 |
BN HQ to Louviegne |
| January 8 |
BN HQ to Xhoris, Co. A to Aywaille, Co. B to Xhoris, Co. C to Remonchamps |
| January 9 |
BN attached to 1106th Engineer Combat Group
BN Attached to XVIII Corps |
| January 18 |
Co. C to Forges |
| January 19 |
Co. C to Lorse |
| January 25 |
BN HQ to La Gleive |
| January 26 |
Co. B to Bierleux |
| January 28 |
BN HQ to Pont, Co. A to Buchel, Co. B to Lignville, Co. C to Recht to support to 82nd Airborne Division |
| February 1 |
BN HQ to Born, Belgium |
| February 5 |
BN awrded battle credit for "Rhineland" campaign |
| February 6 |
BN HQ to Lichtenbusch, Co. C to Nutheim, Germany, Co. B. to Walheim |
| February 14 |
BN attached to III Corps |
| March 5 |
Co. A to Thuir, Co. B to Hurtgen, Co. C to Zerkall |
| March 6 |
BN HQ to Embken, Co. B to Muldenau |
| March 8 |
BN HQ to Euskirchen |
| March 9 |
BN HQ to Berkum, Co. A to Rheinback Co. B and Co. C to Adendorf |
| March 15 |
Co. A to Liessen |
| March 24 |
BN HQ to Linz, Co. A to Bruchhausen, Co. B to Lintz |
| March 25 |
Co. A to Linz BN attached to 7th Armored Division |
| March 26 |
BN HQ to Krummel, Co. A to Selters, Co. B to Linz, Co. C to Deegen |
| March 27 |
BN HQ to Holzhausen, Co. A to Munchausen, Co. B to Holzhausen, Co. C to Stockhausen |
| March 28 |
BN HQ to Hohensolms. Co. A to Bellhausen, Co. B to Wissmar |
| March 29 |
BN HQ to Leidenhofen, Co. A to Grosseelheim, Co. B to Amonebury, Co. C to Tries |
| March 30 |
BN HQ to Frankeuau, Co. A to Frankenau, Co. B to Emdenan, Co. C to Betterdorf |
| March 31 |
Co. C to Geicmae BN attached to 1111th Engineer Combat Group |
| April 1 |
BN to Schonstadt |
| April 4 |
BN to Sompler |
| April 7 |
BN to Hallenburg |
| April 10 |
BN to Medebach |
| April 12 |
BN to Bremke |
| April 14 |
BN to Balve |
| April 15 |
BN assigned to 1159th Engineer Combat Group |
| April 18 |
BN to Bremke, last location in the Ruhr Pocket
BN assigned to the 3rd Army |
| April 19 |
BN to Ober Schweinach, Germany, after trip from Ruhr Pocket |
| April 21 |
BN to Katterbach in German airfield barracks |
| April 27 |
BN to Weissenburg |
| April 28 |
BN HQ to Reicherdorf, Co. A to Reicherdorf, Co. B to Gemelsdorf, Co. C to Moosburg
Attached to 14th Armored Division |
| April 29 |
BN built bridge across the Isar River in Moosburg |
| May 1 |
BN HQ to Schroding, Co. A to Reichersdorf, Co. B to Jettenstetten, Co. C to Busch |
| May 2 |
Co. A to Mechenheim, Co. B to Aschan |
| May 2 |
BN attached to 1111th Engineer Combat Group |
| May 3 |
Co. A to Arndorf, Co. B to Aham |
| May 7 |
BN assigned to 3rd Army |
| May 8, 1945 |
V-E Day |
| May (end of) |
BN HQ to Aschaffenburg, Co. A to Burkenauerhot, Co. B to Bischbornerhot Attached to III Corps |
| June 6 |
Major Riel Crandall promoted to Lt. Col. |
| June 11 |
Co. A to Burckenan, Co. B to Aschaffenburg |
| June 13 |
Attached to XII Corps |
| June 22 |
Co. A to Bad Kissingen |
| June 28 |
Lt. Col. Crandall assigned command of 1110th |
| July 9 |
Major Ken W. Sackett assumed command of 300th |
| July 15 |
BN HQ to Bergal, Co. C to Thalmassi |
| July 21 |
BN attached to 1123rd Engineer Combat Group |
| October 23 |
BN departed Marseille, France on the "Groucher Victory" |
| November 2 |
BN arrived in U. S. |
| November 13 |
BN awarded battle credit for "Northern France" campaign |
| December 7 |
BN awarded battle credit for "Ardennes" campaign |
| December 11 |
BN awarded battle credit for "Central Europe" campaign |