Mackay, L. Gertrude (Lucy Gertrude), 1877–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2412055A
- pdbooks.info ID: 123690
L. Gertrude (Lucy Gertrude) Mackay Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| The housekeeper's apple book: over two hundred ways of preparing the apple | 1917 | Author | |  | |  | | 
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