Marszałkowo – Gmina Badkowo – Slownik Geograficzny Translations
Below is my translation of the Słownik Geograficzny Krolestwa Polskiego entry for Marszałkowo. Any errors in the translations are completely my own.
Current administrative location: Marszałkowo, Gmina Bądkowo, Powiat Aleksandrów, Województwo Kujawsko-Pomorskie.
Administrative location in 1895 (Słownik Geograficzny Krolestwa Polskiego): Marszałkowo, Powiat Nieszawa, Gubernia Warszawske, Vistula Land, Russian Empire.
1) A village located in powiat Nieszawa and gmina Bądkowo. Marszałkowo belongs to the Łowiczek Parish. There is a brickyard that used to be part of neighboring Łowkowice.
Słownik Geograficzny Krolestwa Poliskiego – Warsaw [1895, vol.06, p.136. Retrieved from http://www.mimuw.edu.pl/polszczyzna/SGKP/SG06.djvu?djvuopts&page=136
This village may have been incorporated into a near by village in recent years. I could not find it on a newer map or Google. Marszałkowo was located between Żołnowo and Łowkowice.