In Jamna, a local tenant of the property was robbed, whose son died, wounded in the stomach.

source: Żurek Stanisław, „Calendar of the genocide – April 1944”; in: portal: Volhynia — web page: wolyn.org [accessible: 2021.02.04]

source: „1944, April 24 - A note sent to the President of the RGO in Krakow. It concerns Ukrainian anti-Polish demonstrations in Galicia”; in: National Ossoliński Institute, Wrocław, in: No. 16722/2, p. 143—144

Excerpt from a statistical study of the OUN regional political clerk on Ukrainian victims of armed formations of the Republic of Poland in the area of the 2nd 'Chłodny Jar' district in the 1st District of the Zakerzonya Region in 1945—1946  […] :
„PRZEMYŚL II (region):  […]
15. Jamna Górna — 2  […]
Stopover, December 4, 1946 B[ojczu]k”.

source: „Chołodnyj Jar'O. II. Statystyczni dani na deń 30 weresnia 1946”; in: Institute of National Remembrance IPN Rzeszów, in: Acta OAIPN Rz 072/1, vol. 3, sh. 120

source: Huk Bogdan with a group of friends, „Murders of the Ukrainian population 1944-1947”; in: portal: Ruthenian apocrypha — web page: www.apokryfruski.org [accessible: 2021.09.30]

While the villages were burned down after the Ukrainians had been resettled, the UPA murdered 4 elderly Poles who had not left their farms.

source: Żurek Stanisław, „Calendar of the genocide – October 1945”; in: portal: Volhynia — web page: wolyn.org [accessible: 2021.02.04]

Excerpt from the situational report of the political clerk of the OUN 'Chłodny Jar' district, Petr Kawuzy 'Taras', on the murder by Polish Army soldiers on Ukrainians in Jamno Górna:
„On January 11, 1946, about 180 Polish Army arrived in Rybotycze from the side of Przemyśl. The next morning it reached Jamna Dolna, where it caught two civilian couriers sent from Bryliniec and arrested another (boy). They took them all to Jamna Górna and locked them in the basement. They also brought a local idiot beggar to this cellar. Those arrested fled at night, leaving a fool whom the Poles killed the next day”.

source: „Wisti z terenu wid 7.1 do 30.1.1946”; in: Poticzny P. J., Łyko I. (ed,), „Litopys UPA”, in: Toronto-Lviv 2002, vol. 34: „Lemkivshchyna and Peremyszczyna. Political reports (Documents)”, p. 463, in: orig. Ukrainian

source: Huk Bogdan with a group of friends, „Murders of the Ukrainian population 1944-1947”; in: portal: Ruthenian apocrypha — web page: www.apokryfruski.org [accessible: 2021.09.30]

Fragment of an interview with Mykoła Bobka, born in in 1930 in Jamno Górna about the murder of Polish Army soldiers on a Ukrainian in Jamno Górna:
„— «Do you remember manhunts for partisans in the village?»
— «They did not kill partisans, but we had one not quite wise. The army came to the village, he said: ‹Wait, you, here, under every beech tree there are ten partisans, they will teach you›. And this [soldier] took the automat and, after it, killed him»”.

source: „Zapis wideo rozmowy z Mykołą Bobką z 6 maja 2013 roku”; in: Bogdan Huk's archive

source: Huk Bogdan with a group of friends, „Murders of the Ukrainian population 1944-1947”; in: portal: Ruthenian apocrypha — web page: www.apokryfruski.org [accessible: 2021.09.30]

The Banderites murdered Michał Borowski and Sławomir Borowski.

source: Zapałowski Andrzej, „Border on fire”, in: ASPRA-JR Publishing House, History of the Peasant Movement Museum, Warsaw 2016, p. 240 — web page: ptg.edu.pl [accessible: 2021.06.10]

source: Żurek Stanisław, „Calendar of the genocide – August 1946”; in: portal: Volhynia — web page: wolyn.org [accessible: 2022.02.25]

Michał Borowski, a Ukrainian residing in Jamna Górna, a descendant of the impoverished nobility. Murdered, together with his son, in August 1946 by the Ukrainian SB‑OUN militia of the 'B II' area of the 'Chołodny Jar' super–region. Suspected of cooperation with the Polish Communist UBP and the Polish Armed Forces. Responsible — the Ukrainian SB clerk, nom–de–guerre 'Roman'. Jadwiga Turczyńska incorrectly states the date of the murder (1944); Sławomir Borowski, s/o Michał, 15 years old Ukrainian (?) Living in Jamna Górna, killed with his father.

source: Żurek Stanisław, „Calendar of the genocide – August 1946”; in: portal: Volhynia — web page: wolyn.org [accessible: 2022.02.25]

On September 1, 10 soldiers of the Polish Army WP were killed in the fight against the UPA in the Broniewski forest. There are also reports that on that day the following soldiers of the Polish Army were killed in the fight against the UPA in the area of Jamna Dolna and Górna: 2nd Lt. Władysław Biesiada, b. 1917, Cpr. WP Wojciech Gałaś, b. 1921, private Stefan Karasz, b. 1922, private Jan Oblizajek, s/o Kasper, b. 1922, private Zygmunt Pretkowski, s/o Stanisława, b. 1922, private Józef Sikora, s/o Antoni, b. 1924, private Franciszek Warwiński, s/o Zygmunt, b. 1922. All the killed were buried in Baligród.

source: Zapałowski Andrzej, „Border on fire”, in: ASPRA-JR Publishing House, History of the Peasant Movement Museum, Warsaw 2016, p. 241 — web page: ptg.edu.pl [accessible: 2021.06.10]

source: Żurek Stanisław, „Calendar of the genocide – September 1946”; in: portal: Volhynia — web page: wolyn.org [accessible: 2022.02.25]

According to Polish data, 4 KBW (Internal Security Forces) soldiers were killed and 7 were injured in the forests near Jamna Góra in the fight against the UPA 'Burłaki' (Włodzimierz Szczygielski) and 'Kryłacza' (Jarosław Kociołek) sotnyas, while according to the UPA, 58 Poles were killed.

source: Motyka Grzegorz, „So it was in Bieszczady. Polish-Ukrainian battles in 1943-1948.”, in: Volumen Publishing House, Warsaw 1999, Warsaw 1999, p. 395

source: Żurek Stanisław, „Calendar of the genocide – year 1947”; in: portal: Volhynia — web page: wolyn.org [accessible: 2022.03.02]

Meanwhile, Edward Prus states:
„On March 3, 1947, in the Bananiów forest, poviat Przemyśl, about 60 soldiers of the Polish Army were murdered by the UPA gang under the command of Szczygielski. During one of the fights they were surrounded by a gang and murdered”,
[and] quotes „List of criminal acts committed by UPA gangs in 1944–1947”, compiled at the 'C' Department of the Provincial Office of Internal Affairs in Rzeszów. Is the WUSW in Rzeszów „List” based on data from the UPA?

source: Prus Edward, „Operation "Vistula"”, in: ed. IV, Wroclaw 2006, p. 292

source: Żurek Stanisław, „Calendar of the genocide – year 1947”; in: portal: Volhynia — web page: wolyn.org [accessible: 2022.03.02]

„At the beginning of March, i.e. on 4th [of March], between the villages of Arłamów and Jamna Górna, in the Braniowski forest, a sub–unit of the Polish Army clashed with the UPA sotnya.
According to other data, in the region of Jamna Dolna, the Internal Security Corps KBW operational group of 114 people, under the command of Capt. Dzenia fought a short fight with the sotnyas of 'Burłak' and 'Kryłacz'. The losses on the Polish side were as follows: Lt. Zbigniew Bojanowski, so. Michał, b. 27 January 1926 in Lviv and 3 privates (Private 1st Class Stanisław Bednarek, so. Wojciech, b. 27 April 1924 in Mikonki, Private Tadeusz Matuszewski, so. Walenty, b. October 1, 1925 in Waliszki, Private Józef Pakuła, so. Szczepan, b. March 13, 1922 in Czeladź), and the UPA was to lose 38 people, which is probably an overstated number.
According to other studies, the Banderites' losses amounted to 12 killed and 10 wounded. There were supposed to be 4 killed and 7 wounded on the side of the KBW. The UPA also overestimated the Polish losses and put them at 58 people. Other sources also provide data on 3 killed soldiers, 1 wounded officer and 9 wounded soldiers. The UPA was to lose 20‑30 people.
Some studies mention the Jureczkowa area as the place of the clash, and the UPA's losses at 30 people. 28th Infantry Regiment was to participate in the battle”.

source: Zapałowski Andrzej, „Border on fire”, in: ASPRA-JR Publishing House, History of the Peasant Movement Museum, Warsaw 2016, p. 255 — web page: ptg.edu.pl [accessible: 2021.06.10]

source: Żurek Stanisław, „Calendar of the genocide – year 1947”; in: portal: Volhynia — web page: wolyn.org [accessible: 2022.03.02]