"three and a half years. Now on every hand vegetation was springing up as if to redeem the time of drought and famine. PK 217.1"
"Elias was a man subject to like passions as we are, and he prayed earnestly that it might not rain: and it rained not on the earth by the space of three years and six months."
Both passages refer to the duration of the drought during Elijah's time. James 5:17 mentions the three years and six months of drought, and the EGW passage refers to the 'three and a half years' and the subsequent renewal of vegetation. This is a clear thematic parallel.
"Elisha's father was a wealthy farmer, a man whose household were among the number that in a time of almost universal apostasy had not bowed the knee to Baal. Theirs was a home where God was honored and where allegiance to the faith of ancient Israel was the rule of daily life. In such surroundings the early years of Elisha were passed. In the quietude of country life, under the teaching of God and nature and the discipline of useful work, he received the training in habits of simplicity and of obedience to his parents and to God that helped to fit him for the high position he was afterward to occupy. PK 217.2"
"So he departed thence, and found Elisha the son of Shaphat, who was plowing with twelve yoke of oxen before him, and he with the twelfth: and Elijah passed by him, and cast his mantle upon him."
While the EGW passage provides background information about Elisha's upbringing and family, it directly relates to the event described in 1 Kings 19:19, where Elijah finds Elisha plowing. The EGW passage explains the context of Elisha's life before being called by Elijah. It's not a direct allusion, but a thematic parallel providing context.