Here I have read something but I didn't find a better reference related to Sage Pulaha, I only know that he married a daughter of Daksha named Kshamā (Patience), by whom he had three sons.
I found it
Pulaha is named among the principal Saptarishis, or those most often listed from the first Manvantara: Bhrigu, Angiras, Marici, Atri, Vasistha, Pulastya, Pulaha and Kratu. Pulaha was manas-putra of Prajapati as mentioned Here According to Vishnu Purana He was born from the navel of Lord Brahma. Source
According to Vishnu Purana The wife of Pulaha was Kshama.
Kshamá, the wife of the patriarch Pulaha, was the mother of three sons, Karmasa, Arvarívat, and Sahishńu
According to Srimad Bhagwatam an another wife of Brahmarishi Pulaha was GATI
pulahasya gatir bhāryā
trīn asūta satī sutān
sahiṣṇuṁ ca mahā-mate
Gati,( daughter of Kardama Muni) the wife of the sage Pulaha, gave birth to three sons, named Karmaśreṣṭha, Varīyān and Sahiṣṇu, and all of them were great sages.
Here is Something mentioned in Devi Bhagwatam related with sage pulaha.