K. Markiewicz executed the interior decorations of Holy Trinity in 1914 by and the mural paintings on the vaults were completed in 1926 . The fine stained glass windows were selected in 1940 and installed in 1955 . Most were installed by a well-known Polish artist , Irena Lorentowicz . A figure of Our Lady Queen of Emigrants by Professor Wiktor Zin was brought to the church and blessed by Cardinal Joseph Bernardin in 1990 . In 1992 , an urn filled with soil from Kharkiv , Katyn and Mednoye in the former Soviet Union . Each of these sites contained mass graves of Poles murdered during World War II . The congregation installed memorial plaques in the narthex in 1993 and 1994 to honor Casimir Sztuczko , CSC , the longtime pastor of Holy Trinity who oversaw the building of the current church , and to commemorate the 50th anniversary of the Battle of Monte Cassino , respectively . The '' Millennium Doors '' , by artist Jerzy Kenar , began welcoming visitors into the sanctuary in 2000 . In honor of the 100th anniversary of the construction of the current church , the congregation began a renovation campaign in 2005 . Work included installing new copper cupolas the two church towers , new granite tile in the presbytery , and the painting and refurbishing the interior . The area above the choir received a new mural depicting St. Cecilia in the company of an angelic choir . Other new depictions include St. Faustina , Cardinala Stefan Wyszynski and August Hlond and Pope John Paul II were added to reflect Saintly cults popular among today 's Polish community . The parish obtained relics of St. Gianna Beretta Molla , Karolina Kózka and Padre Pio for adoration by parishioners
Katyn
Katyn massacre
Holy Trinity Roman Catholic Church (Chicago)