Help and advice please

Hoping for help and advice on finding facts and family

my great grand mothers name was margaret algie, she had a brother called john and her parents were james and eliza.

found my great grand mothers birth -

margaret ann algoe

date of birth 4 January 1863

date of baptism 15 march 1863

address figart, parish/district raphoe, county donegal, denomination church of ireland, father james algoe - labourer, mother eliza

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great great grand parents marriage

date of marriage 8 sept 1859

parish/district convoy, county donegal, husband james algoe, address raphoe, denomination Presbyterian, occupation labourer, age full age (over 21), status widower (male), husbands father james algoe - farmer

wife eliza haly, address ruskey, denomination Presbyterian, occupation labourer, age full age (over 21), wife's father john haly, occupation farmer

witness 1 Robert beattie, witness 2 william Russell 

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great grand mothers siblings

james algeo, birth 13 aug 1860, baptism 31 October 1860, rooskey, raphoe, donegal, Presbyterian, father james algeo, mother eliza Jane healey

not recorded (john) algeo, birth 13 may 1865, baptism 12 aug 1865, ruskey raymochey, manorcunningham, donegal, civil record, father james algeo, labourer, mother eliza Jane helly, informant john helly

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great great grandmothers sibling

eleanor healey, birth 24 sept 1849, baptism 18 October 1849, ruskey, raphoe, donegal, Presbyterian, father john healey, mother margaret mitchel

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griffiths valuation

john healy, landlord john Craig 

county donegal

barony raphoe, north

union letterkenny 

parish raymoghy

townland roosky

placename roosky

place type townland

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james algeo was a widower when he married eliza - according to his death certificate his first wife was Martha mcnaught