Re soebarkah: that sounds like that religion. I grew up with a best friend whose parents were Subud. I didn’t know the name of it at the time but it is subud because her father is proud of it and it is on his website. Their “guru” (that subud)insisted on changing people’s names - legally - sometimes multiple times - to improve their lives. They were ordered to change their names or that of their kids. My friend lived 5 years with one name and it was changed on her then.
Soebarkah is the name of a very prominent Indonesian family, their family tree with hundreds of photographs is on the web. One of their family was high in the Indonesian military, was a coffin bearer at the funeral of Suharto.
The name is sometimes written as SUBARKAH.
SUKARNO=SOEKARNO
SUHARTO=SOEHARTO
SUTORO=SOETORO
SUBARKAH=SOEBARKAH
You’ll find the military fellow on wiki connected to Suharto. No Subud connection required.