The correct spelling is Anton, not Antone.
And the correct original spelling of the surname is POSAVEC (in this case the C sounds like tz or ts)
Both of them were Slovenian, which was under the rule of Austria until after WW I
This may be Anton's ship manifest
Last Place of Residence:Trgenisci, Austria
Date of Arrival:28 Mar 1910
Age at Arrival:23y
Port of Departure:Trieste
Port of Arrival:New York City, New York, New York
Ship of Travel:Martha Washington
The transcribers made an error Anton was from Trgovišče which is located in Slovenia 79.6 miles ENE of Ljubljana near the Croatian borderhttp://www.mapquest.com/?le=t&q=46.4161%2C16.0961&zo...
the arrival info concurs with Anton's Petition for Naturalization (see attachment) his birth location is given as Steirmark, which was the province where Trgovišče is located
And this may be Josephine's arrival info
Arrival Date:13 Nov 1906
Birth Year:abt 1888
Birth Location Other:domzale
Port of Departure:Antwerp, Belgium
Domžale is located 7 miles ENE of Ljubljanahttp://www.mapquest.com/?le=t&q=46.1381%2C14.5978&zo...
Both PIRC and POSAVEC are common names in Slovenia.
Croatian Heritage Museum
Port of Arrival:New York, New York