[1] His father Michał Mikołaj Dowgird was an engineer building a railway linking Moscow and St Petersburg, married to Maria née Jeleńska.

The year 1905 marked the beginning of his political career, when he joined the Lithuanian Seimas, while being a conservator at the Kaunas City Museum.

[3] In the years of 1910 and 1914, Tadeusz Dowgird was a major player in running the Lithuanian Art Society's exhibitions.

During the First World War, he continued to guard the museum in Kaunas, while writing a detailed diary during Germany's occupation of the Baltics.

In February of that same year, prototypes created by Tadeusz Dowgird and Kazimieras Šimonis were chosen to be published for the first collection of Lithuanian postage stamps, printed in Berlin.