Question: The brother of the Goddesses Selene and Eos may be the natural father of what God?

Context paragraphs:
Georgina Worsley (Upstairs, Downstairs character): Georgina Worsley arrives to live at Eaton Place in 1913.  She is the step-daughter of Lady Marjorie's brother Hugo Talbot-Carey (the new Earl of Southwold).  His new wife is the widow Marion Worsely, and mother of Georgina by her previous marriage.  Georgina's natural father died in a hunting accident when she was six years old.  Her mother and step-father die along with Lady Marjorie in the sinking of the "RMS Titanic" in 1912.  After that she moves into 165 Eaton Place right before Christmas in December 1913.

Helios: Helios ( ; Ancient Greek: Ἥλιος "Hēlios"; Latinized as "Helius"; Ἠέλιος in Homeric Greek) was the personification of the Sun in Greek mythology.  He is the son of the Titan Hyperion and the Titaness Theia (according to Hesiod), also known as Euryphaessa (in Homeric Hymn 31) and brother of the goddesses Selene, the moon, and Eos, the dawn.

Selene: In Greek mythology, Selene ( ; Ancient Greek: Σελήνη ] 'moon';) is the goddess of the moon.  She is the daughter of the Titans Hyperion and Theia, and sister of the sun-god Helios, and Eos, goddess of the dawn.  She drives her moon chariot across the heavens.  Several lovers are attributed to her in various myths, including Zeus, Pan, and the mortal Endymion.  In classical times, Selene was often identified with Artemis, much as her brother, Helios, was identified with Apollo.  Both Selene and Artemis were also associated with Hecate, and all three were regarded as lunar goddesses, although only Selene was regarded as the personification of the moon itself.  Her Roman equivalent is Luna.

Hyrmine: In Greek mythology, Hyrmine (Ὑρμίνη ) was a daughter of Neleus, Nycteus, or, according to others, of Epeius and Anaxiroe, and sister of Alector (though others assert she was an only child).  She was the wife of Phorbas and by him the mother of the Argonauts Augeas, Actor and Tiphys.  The natural father of Augeas by her may have been Helios.

Hyperion (mythology): In Greek mythology, Hyperion ( ; Greek: Ὑπερίων , "Huperíōn " , "The High-One") was one of the twelve Titan children of Gaia (Earth) and Uranus (Sky or Heaven) who, led by Cronus, overthrew their father Uranus and were themselves later overthrown by the Olympians.  With his sister, the Titaness Theia, Hyperion fathered Helios (Sun), Selene (Moon) and Eos (Dawn).

Marks of distinction: A mark of distinction, in heraldry, is a charge showing that the bearer of a shield is not (as defined by the rules or laws of heraldry in most, though not all, countries and situations) descended by blood from the original bearer.  The "mark of distinction" (which is so called as it is supposed to "make distinct" that the bearer is not one of the possible legitimate heirs or heiresses) usually refers to a context of illegitimacy, the illegitimate offspring being regarded as a "stranger in blood" to his natural father.  The mark of distinction may also be applied upon the adoption of a surname and arms of a family from whom the bearer is not descended.

Kosmas Doumpiotis: Kosmas Doumpiotis (Greek: Κοσμάς Δουμπιώτης) was a Greek politician.  He was born in 1826 in Skopelos.  His mother came from Nikiti of Chalkidiki.  After the death of his natural father, he was adopted by Asterios Doumpiotis, brother Konstantinos Doumpiotis.  As captain of the Hellenic Army he was the leader of the Revolution of Olympus in 1878 that took place in the area of Pieria.  After the failure of the revolution he returned to Greece.  In 1899 he was elected in Sporades and was temporarily Speaker of the Parliament being the oldest of the members.  He died in 1922.

God in Mormonism: In orthodox Mormonism, the term God generally refers to the biblical God the Father, whom Mormons sometimes call Elohim, and the term Godhead refers to a council of three distinct divine persons consisting of God the Father, Jesus (his firstborn Son, whom Mormons sometimes call "Jehovah"), and the Holy Ghost (Holy Spirit).  Mormons believe that the Father, Son, and the Holy Ghost are three distinct beings, and that the Father and Jesus have perfected, glorified, physical bodies, while the Holy Ghost is a spirit without a physical body.  Mormons also believe that there are other gods and goddesses outside of the Godhead, such as a Heavenly Mother who is the wife of God the Father, and that faithful Mormons may attain godhood in the afterlife.

Sumako Matsui: Sumako Matsui (松井 須磨子 , Matsui Sumako , November 1, 1886 – January 5, 1919) was a Japanese actress and singer.  Born as Masako Kobayashi in Matsushiro, Nagano, Nagano Prefecture as the fifth daughter and last of nine children of Tohta Kobayashi, she was adopted by the Hasegawa family in Ueda at the age of six and in 1900 graduated Ueda school.  She had to return to her birth family after her adopted father died, however in the year of her return, her natural father also died.  At the age of 17 she moved to Tokyo.

Theia: In Greek mythology, Theia ( ; Ancient Greek: Θεία  "Theía" , sometimes rendered Thea, Théa or Thia), also called Euryphaessa "wide-shining", is a Titaness.  Her brother/consort is Hyperion, a Titan and god of the sun, and together they are the parents of Helios (the Sun), Selene (the Moon), and Eos (the Dawn).

Supporting paragraphs: Hyrmine Helios
Answer: Argonauts Augeas